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Excluded and Anomalous Names

These names are not valid for U.S. plants and so are separate from the main PLANTS database.

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PLANTS -The list of Nomina Exclusa (excluded names)Nomina Exclusa

The list of vascular plant names excluded from the PLANTS U.S. checklist. Includes some cultivated plants, and many names that are valid for European, circumboreal, and other extra-U.S. plants but have been wrongly applied to our flora.

EQUISETOPHYTA (Horsetails)
  EQUISETACEAE
    Equisetum ×dycei C.N. Page
LYCOPODIOPHYTA (Club-mosses and allies)
  ISOETACEAE
    Isoetes flaccida var. rigida Engelm.
  LYCOPODIACEAE
    Huperzia somai (Hayata) Ching
      SY= Lycopodium somai Hayata
    Lycopodium phlegmaria L.
        Not in North America north of Mexico
    Lycopodium volubile G. Forst.
        Not in North America north of Mexico
  SELAGINELLACEAE
    Selaginella stipitata Spring
PTERIDOPHYTA (Ferns)
  ANEMIACEAE
    Anemia cicutaria Kunze ex Spreng.
        Not in North America north of Mexico
  ASPLENIACEAE
    Asplenium cookii Copel.
        Not in North America north of Mexico
    Asplenium fragile K. Presl
        Not in North America north of Mexico
    Diellia pumila Brack.
        Not in North America north of Mexico
  AZOLLACEAE
    Azolla pinnata R. Br.
  BLECHNACEAE
    Blechnum underwoodianum (Broadh.) C. Christens.
        Not in North America north of Mexico
      SY= Struthiopteris underwoodiana Broadh.
  CYATHEACEAE
    Cnemidaria sessilifolia (Jenman) Domin
        Not in North America north of Mexico
      SY= Cyathea sessilifolia Jenman
    Nephelea pubescens (Kunth) R. Tryon
        Not in North America north of Mexico
    Trichipteris pubescens (Baker) R. Tryon
        Not in North America north of Mexico
  DENNSTAEDTIACEAE
    Hypolepis flaccida (Hbd.) W.J. Robins.
        Not in North America north of Mexico
  DRYOPTERIDACEAE
    Ctenitis hirta var. hirta
      SY= Dryopteris hirta (Sw.) Kuntze
      SY= Thelypteris hirta (Sw.) Copeland
    Deparia prolifera (Kaulfuss) Hook. & Grev.
      SY= Athyrium macraei (Hook. & Grev.) Copeland
      SY= Athyrium mauianum Copeland
      SY= Athyrium proliferum (Kaulfuss) C. Christens.
      SY= Deparia mauiana (Copeland) M. Kato
      SY= Diplazium mauianum (Copeland) C. Christens.
    Diplazium maximum (Don) C. Christens.
        Not in North America north of Mexico
      SY= Athyrium maximum (Don) Milde
    Gymnocarpium ×achriosporum Sarvela
    Maxonia apiifolia (Sw.) C. Christens.
        Not in North America north of Mexico
    Nephrolepis pectinata (Willd.) Schott
        Not in North America north of Mexico
    Polystichum muricatum (L.) Fée
        Not in North America north of Mexico
    Woodsia mexicana Fée
        Not in North America north of Mexico
  GLEICHENIACEAE
    Gleichenia furcata (L.) Spreng.
        Not in North America north of Mexico
    Gleichenia glauca (Houtt.) Hook.
        Not in North America north of Mexico
  LYGODIACEAE
    Lygodium venustum Sw.
  MARSILEACEAE
    Regnellidium diphyllum (Lindman)
        Not in North America north of Mexico
  POLYPODIACEAE
    Pecluma ptilodon ssp. ptilodon
        Not in North America north of Mexico
      SY= Polypodium ptilodon Kunze
    Polypodium cambricum L.
        Not in North America north of Mexico
      SY= Polypodium australe Fée
      SY= Polypodium vulgare L. var. cambricum (L.) Willd.
  PTERIDACEAE
    Adiantum hirsutum Bory
    Cheilanthes pyramidalis Fée
        Not in North America north of Mexico
    Cryptogramma crispa (L.) R. Br. ex Hook.
        Not in North America north of Mexico
    Notholaena schaffneri (Fourn.) Underwood ex Davenport
        Not in North America north of Mexico
      SY= Notholaena nealleyi Seaton ex Coult. var. mexicana Davenport
      SY= Notholaena schaffneri (Fourn.) Underwood ex Davenport var. mexicana (Davenport) Davenport
    Pellaea sagittata (Cav.) Link
        Not in North America north of Mexico
  THELYPTERIDACEAE
    Thelypteris acuminata (Houtt.) Morton
        Not in North America north of Mexico
    Thelypteris asterothrix (Fée) Proctor
        Not in North America north of Mexico
    Thelypteris cordata var. cordata
      SY= Dryopteris cordata (Fée) Urban
    Thelypteris oligocarpa (Humb. & Bonpl. ex Willd.) Ching
        Not in North America north of Mexico
    Thelypteris patens (Sw.) Small var. smithiana Ponce
        Not in North America north of Mexico
      SY= Thelypteris patens (Sw.) Small var. scabriuscula auct. non (K. Presl) A.R. Sm.
    Thelypteris truncata (Poir.) K. Iwats.
        Not in North America north of Mexico
CONIFEROPHYTA (Conifers)
  CUPRESSACEAE
    Callitris preissii Miq.
      SY= Callitris robusta (A. Cunn. ex Parl.) R. Br. ex F.M. Bailey
    Chamaecyparis pisifera Sieb. & Zucc.
        Not in North America north of Mexico
    Juniperus chinensis L.
        Not in North America north of Mexico
    Juniperus communis L. var. communis
        Not in North America north of Mexico
    Juniperus monosperma (Engelm.) Sarg. var. gracilis Martinez
        Not in North America north of Mexico
    Juniperus rigida Sieb. & Zucc.
        Not in North America north of Mexico
    Juniperus sabina L.
        Not in North America north of Mexico
    Juniperus squamata D. Don
        Not in North America north of Mexico
  PINACEAE
    Cedrus libani A. Rich.
        Not in North America north of Mexico
    Pinus wallichiana Jackson
        Not in North America north of Mexico
      SY= Pinus griffithii McClell.
MAGNOLIOPHYTA (Flowering plants)
  ACANTHACEAE
    Anisacanthus junceus (Torr.) Hemsl.
        Not in North America north of Mexico
      SY= Drejera juncea Torr.
    Holographis virgata (Harvey ex Benth. & Hook. f.) Daniel
        Not in North America north of Mexico
      SY= Berginia virgata Harvey ex Benth. & Hook. f.
    Justicia candicans (Nées) L. Benson var. subglabra (S. Wats.) L. Benson
        Not in North America north of Mexico
    Pseuderanthemum variabile (R. Br.) Radlk.
        Not in North America north of Mexico
  ACERACEAE
    Acer ×senecaense Slavin
    Acer diabolicum Blume ex K. Koch
        Not in North America north of Mexico
  AGAVACEAE
    Agave americana L. var. marginata Trel.
        Not in North America north of Mexico
    Agave americana L. var. mediopicta Trel.
        Not in North America north of Mexico
    Agave americana L. var. striata Trel.
        Not in North America north of Mexico
    Furcraea macrophylla Baker
        Not in North America north of Mexico
    Sansevieria fasciata Prain
        Not in North America north of Mexico
  AIZOACEAE
    Disphyma crassifolium (L.) L. Bolus
        Not in North America north of Mexico
      SY= Mesembryanthemum crassifolium L.
    Herrea elongata (Haw.) L. Bolus
      SY= Mesembryanthemum elongatum Haw.
  ALISMATACEAE
    Sagittaria sagittifolia L.
  AMARANTHACEAE
    Achyranthes bidentata Blume
    Alternanthera echinocephala (Hook. f.) Christoph.
      SY= Alternanthera menziesii St. John
    Alternanthera trigyna L.
    Amaranthus acutilobus Uline & Bray
      SY= Euxolus emarginatus A. Braun & Bouché
    Amaranthus chihuahuensis S. Wats.
        Not in North America north of Mexico
    Tidestromia oblongifolia (S. Wats.) Standl. ssp. cryptantha (S. Wats.) Wiggins
        Not in North America north of Mexico
  ANACARDIACEAE
    Comocladia cuneata Britt.
    Comocladia dentata Jacq.
    Schinus terebinthifolius Raddi var. rhoifolius (Mart.) Engl.
        Not in North America north of Mexico
    Searsia lancea (L.f.) Barkl.
        Not in North America north of Mexico
  APIACEAE
    Daucus carota L. ssp. sativus (Hoffmann) Arcang.
        Not in North America north of Mexico
    Oenanthe laciniata (Blume) Zoll.
    Osmorhiza aristata (Thunb.) Rydb.
        Not in North America north of Mexico
    Pastinaca sativa L. ssp. sylvestris (P. Mill.) Rouy & Camus
        Not in North America north of Mexico
    Phlojodicarpus villosus Turcz. ex Ledeb.
        Not in North America north of Mexico
    Synelcosciadium carmelii (Labill.) Boiss.
        Not in North America north of Mexico
  APOCYNACEAE
    Carissa carandas L.
        Not in North America north of Mexico
    Carissa edulis (Forsk.) Vahl
        Not in North America north of Mexico
    Rhabdadenia sagraei (A. DC.) Muell.-Arg.
        Not in North America north of Mexico
    Strophanthus gratus (Wallich & Hook. ex Benth.) Baill.
        Not in North America north of Mexico
    Tabernaemontana amygdalifolia Jacq.
        Not in North America north of Mexico
  AQUIFOLIACEAE
    Ilex hexandra Bello
        Not in North America north of Mexico
  ARACEAE
    Xanthosoma hoffmannii Schott
        Not in North America north of Mexico
  ARECACEAE
    Borassus flabellifer L.
        Not in North America north of Mexico
    Trachycarpus wagnerianus Becc.
        Not in North America north of Mexico
  ARISTOLOCHIACEAE
    Aristolochia cordifolia Mutis ex Kunth
        Not in North America north of Mexico
    Aristolochia littoralis Parodi
        Not in North America north of Mexico
  ASCLEPIADACEAE
    Matelea pringlei (Gray) Woods.
      SY= Himantostemma pringlei Gray
  ASTERACEAE
    Acmella uliginosa (Sw.) Cass.
        Not in North America north of Mexico
      SY= Spilanthes uliginosa Sw.
    Adenostemma berteroi DC.
        Not in North America north of Mexico
    Ageratum doingense Spreng.
        Not in North America north of Mexico
    Arnica alpina (L.) Olin
        Not in North America north of Mexico
    Artemisia campestris L. ssp. campestris
      SY= Oligosporus campestris (L.) Cass.
    Artemisia krushiana Bess
        Not in North America north of Mexico
    Artemisia norvegica Fries
        Not in North America north of Mexico
    Artemisia rupestris L. ssp. rupestris
        Not in North America north of Mexico
    Bebbia juncea Greene var. juncea
        Not in North America north of Mexico
    Bidens squarrosa Kunth
        Not in North America north of Mexico
    Brickellia diffusa (Vahl) Gray
        Not in North America north of Mexico
    Carthamus oxyacantha Bieb.
    Centaurea ovina Pallas ex Willd.
    Centaurea ovina Pallas ex Willd. ssp. besseriana (DC.) Dostál
      SY= Centaurea besseriana DC.
    Chrysanthellum americanum (L.) Vatke
        Not in North America north of Mexico
    Cirsium ×canalense Petrak
    Cirsium ×crassum Petrak
    Cirsium validus Greene
    Clibadium surinamense L.
        Not in North America north of Mexico
    Dahlia coccinea Cav.
        Not in North America north of Mexico
    Dendranthema indicum (L.) Des Moulins
        Not in North America north of Mexico
      SY= Chrysanthemum indicum L.
    Elephantopus angustifolius Sw.
      SY= Orthopappus angustifolius (Sw.) Gleason
    Elephantopus scaber L.
        Not in North America north of Mexico
    Eupatorium sordidum Less.
      SY= Bartlettina sordida (Less.) King & H.E. Robins.
    Gamochaeta simplicicaulis (Willd. ex Spreng.) Cabrera
        Not in North America north of Mexico
    Helenium apterum (Blake) Bierner
        Not in North America north of Mexico
    Helenium lanciniatum Gray
        Not in North America north of Mexico
    Hieracium ×flagellare Willd. (pro sp.) var. glatzense (Naegeli & Peter) Lepage (pro nm.)
      SY= Hieracium flagellare Willd. ssp. glatzense Naegeli & Peter
    Hieracium lactucella Wallr.
        Not in North America north of Mexico
    Hieracium praealtum var. praealtum
    Hymenopappus flavomarginatus
        Not in North America north of Mexico
    Hypochaeris microcephala (Schultz-Bip.) Cabrera var. microcephala
    Isocoma veneta (Kunth) Greene
        Not in North America north of Mexico
      SY= Haplopappus venetus (Kunth) Blake
    Iva ambrosiifolia (Gray) Gray ssp. lobata (Rydb.) R.C. Jackson
        Not in North America north of Mexico
    Machaeranthera gymnocephala (DC.) Shinners
        Not in North America north of Mexico
      SY= Haplopappus gymnocephalus DC.
    Machaeranthera pinnatifida (Hook.) Shinners var. scabrella (Greene) B.L. Turner & Hartman
        Not in North America north of Mexico
      SY= Eriocarpum scabrellum Greene
      SY= Haplopappus spinulosus (Pursh) DC. ssp. scabrellus (Greene) Hall
      SY= Haplopappus spinulosus (Pursh) DC. var. scabrellus (Greene) Blake
      SY= Machaeranthera scabrella (Greene) Shinners
    Malacothrix insularis Greene
    Malacothrix polycephala W.S. Davis, sp. nov. ined.
    Malacothrix xanthii Gray
        Not in North America north of Mexico
    Micropus dasycarpa (Griseb.) Beauv.
    Mikania batatifolia DC.
        Not in North America north of Mexico
      SY= Willoughbya heterophylla Small
    Mikania cordata (Burm. f.) B.L. Robins.
      SY= Eupatorium cordatum Burm. f.
    Osteospermum sinuatum (DC.) Norl.
        Not in North America north of Mexico
    Palafoxia linearis (Cav.) Lag.
        Not in North America north of Mexico
    Pectis coulteri Harvey & Gray
        Not in North America north of Mexico
    Perezia multiflora (Humb. & Bonpl.) Less. ssp. sonchifolia (Baker) Vuill.
        Not in North America north of Mexico
      SY= Perezia sonchifolia Baker
    Perityle californica Benth.
        Not in North America north of Mexico
      SY= Perityle plumigera Harvey & Gray
    Picris hieracioides L. ssp. hieracioides var. alpina Koidzumi
    Pleurocoronis laphamioides (Rose) King & H.E. Robins.
        Not in North America north of Mexico
      SY= Hofmeisteria laphamioides Rose
    Pluchea salicifolia (P. Mill.) S.F. Blake
        Not in North America north of Mexico
    Podocoma hieracifolia (Poir.) Cass.
        Not in North America north of Mexico
    Pseudognaphalium brachypterum (DC.) A. Anderb.
      SY= Gnaphalium brachypterum DC.
    Pseudognaphalium jaliscense (Greenm.) A. Anderb.
      SY= Gnaphalium jaliscense Greenm.
    Sartwellia gypsophila Powell & B.L. Turner
        Not in North America north of Mexico
    Saussurea alpina (L.) DC.
      SY= Serratula alpina L.
    Saussurea tilesii (Ledeb.) Ledeb.
    Schkuhria anthemoidea (DC.) Coult. var. anthemoidea
    Sigesbeckia jorullensis Kunth
        Not in North America north of Mexico
    Sonchus asper ssp. glaucescens (Jord.) J. Ball
      SY= Sonchus nymanii Tineo & Guss.
    Stevia ovata var. ovata
    Symphyotrichum ×salignum (Willd.) Nesom
        [lanceolatum × novi-belgii]
      SY= Aster ×salignus Willd.
    Symphyotrichum ×versicolor (Willd.) Nesom
        [laeve × novi-belgii]
      SY= Aster ×versicolor Willd. (pro sp.)
    Thymophylla setifolia Lag. var. setifolia
      SY= Dyssodia setifolia (Lag.) B.L. Robins.
    Tragopogon pratensis L. ssp. orientalis (L.) Celak.
      SY= Tragopogon orientalis L.
    Verbesina hastata Kellogg ex Curran
        Not in North America north of Mexico
    Viguiera deltoidea Gray
        Not in North America north of Mexico
      SY= Viguiera deltoidea Gray var. genuina Blake
    Xanthium ambrosioides Hook. & Arn.
  BASELLACEAE
    Anredera baselloides (Kunth) Baill.
        Not in North America north of Mexico
      SY= Boussingaultia baselloides Kunth
  BERBERIDACEAE
    Berberis sargentiana Schneid.
        Not in North America north of Mexico
    ×Mahoberberis neubertii (hort. e×Lem.) Schneid.
        Not in North America north of Mexico
  BETULACEAE
    Alnus incana (L.) Moench ssp. incana
        Not in North America north of Mexico
    Betula platyphylla Sukatschev var. japonica (Miq.) Hara
    Betula pendula Roth var. dalecarlica Schneid.
        Not in North America north of Mexico
      SY= Betula japonica (Miq.) Sieb.
      SY= Betula mandshurica (Regel) Nakai var. japonica (Miq.) Rehd.
    Betula platyphylla Sukatschev var. kamtschatica (Regel) Hara
      SY= Betula kamtschatica (Regel) Jansson ex Vassiljev
      SY= Betula mandshurica (Regel) Nakai var. kamtschatica (Regel) Rehd.
    Betula pubescens Ehrh. ssp. tortuosa (Ledeb.) Nyman
      SY= Betula tortuosa Ledeb.
  BIGNONIACEAE
    Catalpa bungei C.A. Mey.
        Not in North America north of Mexico
  BOMBACACEAE
    Ceiba aesculifolia (Kunth) Britt. & Baker f.
        Not in North America north of Mexico
    Chorisia speciosa St.-Hil.
        Not in North America north of Mexico
    Pseudobombax ellipticum (Kunth) Dugand
      SY= Bombax ellipticum Kunth
      SY= Pachira fastuosa (Moc. & Sessé ex DC.) Dcne.
  BORAGINACEAE
    Cordia globosa (Jacq.) Kunth var. globosa
        Not in North America north of Mexico
      SY= Varronia globosa Jacq.
    Eritrichium rupestre (Pallas ex Georgi) Bunge
    Heliotropium anomalum Hook. & Arn. var. anomalum
        Not in North America north of Mexico
    Lappula diploloma (Fisch. & C. A. Mey.) Guerke
        Not in North America north of Mexico
    Myosotis canescens (Michx.) Lehm.
  BRASSICACEAE
    Berteroa obliqua (Sibthorp & Sm.) DC.
        Not in North America north of Mexico
    Brassica carinata A. Braun
        Not in North America north of Mexico
    Brassica sisymbrioides (Fisch.) Grossh.
    Cardaminopsis petraea (L.) Hiltonen
        Not in North America north of Mexico
      SY= Arabis petraea (L.) Lam.
    Christolea parryoides (Cham.) N. Busch
        Not in North America north of Mexico
      SY= Ermania parryoides Cham.
    Cochlearia danica L.
        Not in North America north of Mexico
    Cochlearia officinalis L.
        Not in North America north of Mexico
      SY= Cochlearia cyclocarpa Blake
    Draba kamtschatica (Ledeb.) N. Busch
        Not in North America north of Mexico
      SY= Draba nivalis Lilj. var. kamtschatica (Ledeb.) Pohle
    Erucastrum nasturtiifolium (Poir.) O.E. Schulz
      SY= Sinapis nasturtiifolium Poir.
    Erysimum pallasii (Pursh) Fern. var. ochroleucum Tolm.
    Lesquerella argentea (Schauer) S. Wats.
        Not in North America north of Mexico
    Lesquerella berlanderi S. Wats.
        Not in North America north of Mexico
    Lesquerella palmeri S. Wats.
        Not in North America north of Mexico
    Malcolmia graeca Boiss. & Spruner
        Not in North America north of Mexico
    Matthiola incana (L.) Ait. f. var. annua (Sweet) Voss
        Not in North America north of Mexico
    Rapistrum perenne (L.) All.
        Not in North America north of Mexico
    Rapistrum rugosum (L.) All. ssp. linnaeanum Rouy & Foucaud
        Not in North America north of Mexico
    Rorippa intermedia (Kuntze) R. Stuckey
        Not in North America north of Mexico
      SY= Cardamine palustris Peterm. var. intermedia Kuntze
    Rorippa portoricensis (Spreng.) Stehlé var. pumilum (O.E. Schulz) R. Stuckey
        Not in North America north of Mexico
    Subularia aquatica L. ssp. mexicana Mulligan
        Not in North America north of Mexico
  BROMELIACEAE
    Bromelia balansae Mez
        Not in North America north of Mexico
    Tillandsia ariza-juliae L.B. Sm. & J. Jiménez
    Tillandsia lindenii Regel
        Not in North America north of Mexico
  BURSERACEAE
    Bursera fagaroides (Kunth) Engl. var. fagaroides
        Not in North America north of Mexico
  BUXACEAE
    Buxus laevigata (Sw.) Spreng.
        Not in North America north of Mexico
      SY= Buxus citrifolia auct. non (Willd.) Spreng.
      SY= Tricera citrifolia Willd.
  CACTACEAE
    Coryphantha octacantha (DC.) Britt. & Rose
        Not in North America north of Mexico
      SY= Coryphantha muehlenpfordtii (Poselg.) Britt. & Rose
    Coryphantha villarensis Backeberg
        Not in North America north of Mexico
    Echinocereus sciurus (K. Brandeg.) Dams
        Not in North America north of Mexico
      SY= Echinocereus pectinatus (Scheidw.) Engelm. var. minor (Engelm.) L. Benson
    Harrisia gracilis (P. Mill.) Britt.
      SY= Harrisia donae-antoniae M.L. Hooten
    Opuntia cantabrigiensis Lynch
    Opuntia cordobensis Speg.
    Opuntia megacantha Salm-Dyck
        Not in North America north of Mexico
    Pediocactus peeblesianus (Croizat) L. Benson var. maianus L. Benson
        Not in North America north of Mexico
    Sclerocactus brevihamatus (Engelm.) D.R. Hunt ssp. brevihamatus
        Not in North America north of Mexico
      SY= Ancistrocactus brevihamatus (Engelm.) Britt. & Rose
      SY= Echinocactus brevihamatus Engelm.
    Sclerocactus uncinatus (Galleotii) N.P. Taylor var. uncinatus
        Not in North America north of Mexico
      SY= Ancistrocactus uncinatus (Galeotti) L. Benson
      SY= Echinocactus uncinatus Galeotti
      SY= Thelocactus uncinatus (Galeotti) W.T. Marsh.
    Selenicereus innesii M. Kimnach
  CALLITRICHACEAE
    Callitriche intermedia Hoffmann ssp. intermedia
        Not in North America north of Mexico
  CAMPANULACEAE
    Campanula carnica Schied. ex Mert. & Koch
        Not in North America north of Mexico
      SY= Campanula linifolia Scop. non L.
    Campanula cochlearifolia Lam.
        Not in North America north of Mexico
    Lobelia gruina Cav.
        Not in North America north of Mexico
    Lobelia robusta Graham var. robusta
      SY= Tupa robusta (Graham) A. DC.
  CANNACEAE
    Canna lambertii Lindl.
    Canna lutea P. Mill.
  CAPPARACEAE
    Capparis spinosa L.
        Not in North America north of Mexico
    Crateva tapia L.
        Not in North America north of Mexico
  CAPRIFOLIACEAE
    Lonicera chrysantha Turcz. ex Ledeb.
        Not in North America north of Mexico
    Lonicera korolkowii Stapf
    Viburnum ×burkwoodii Burkwood & Skipw.
        Not in North America north of Mexico
    Viburnum ×jackii Rehd.
    Viburnum odoratissimum Ker-Gawl.
    Viburnum sargentii Koehne
        Not in North America north of Mexico
    Weigela japonica Thunb.
        Not in North America north of Mexico
  CARYOPHYLLACEAE
    Cerastium pumilum W. Curtis ssp. pallens (F.W. Schultz) Schinz & Thellung
      SY= Cerastium glutinosum Fries
    Dianthus arenarius L.
    Drymaria arenarioides Humb. & Bonpl. ex J.A. Schultes
        Not in North America north of Mexico
    Drymaria gracilis Cham. & Schlecht.
    Gypsophila stevenii Fisch. ex Schrank
    Honckenya peploides (L.) Ehrh. ssp. peploides
        Not in North America north of Mexico
    Lychnis alpina var. alpina
        Not in North America north of Mexico
      SY= Silene suecica (Lodd.) Greuter & Burdet
      SY= Viscaria alpina (L.) G. Don
    Minuartia verna (L.) Hiern
      SY= Arenaria verna L.
    Silene acaulis (L.) Jacq. var. acaulis
        Not in North America north of Mexico
    Silene apetala Willd.
        Not in North America north of Mexico
  CELASTRACEAE
    Celastrus gemmata Loes.
    Evonymus nana Bieb.
        Not in North America north of Mexico
  CERATOPHYLLACEAE
    Ceratophyllum submersum L.
        Not in North America north of Mexico
  CHENOPODIACEAE
    Atriplex barclayana (Benth.) D. Dietr.
    Chenopodium album L. var. candicans Moq.
    Chenopodium album L. var. centrorubrum Makino
        Not in North America north of Mexico
    Chenopodium schraderianum J.A. Schultes
      SY= Chenopodium foetidum Schrad.
      SY= Teloxys schraderiana (J.A. Schultes) W.A. Weber
    Chenopodium strictum Roth. var. striatum (Krasan) J. Murr.
        Not in North America north of Mexico
    Corispermum ochotense Ignatov var. ochotense
        Not in North America north of Mexico
    Corispermum orientale Lam.
        Not in North America north of Mexico
    Halimione portulacoides (L.) Aellen
        Not in North America north of Mexico
      SY= Atriplex portulacoides L.
    Kochia iranica Bornm.
        Not in North America north of Mexico
    Sarcocornia fruticosa (L.) A.J. Scott
      SY= Arthrocnemum fruticosum (L.) Moq.
      SY= Salicornia fruticosa (L.) L.
  CISTACEAE
    Lechea tripetala (Moc. & Sessé ex DC.) Britt.
  CLUSIACEAE
    Clusia flava Jacq.
        Not in North America north of Mexico
    Hypericum formosum Kunth
        Not in North America north of Mexico
  COMMELINACEAE
    Murdannia loriformis (Hassk.) R. Rao & Kammathy
        Not in North America north of Mexico
  CONVOLVULACEAE
    Convolvulus pilosellifolius Desr.
    Evolvulus tenuis Mart. ex Choisy
    Evolvulus tenuis ssp. longifolius (Choisy) van Ooststr.
    Evolvulus tenuis ssp. tenuis
    Ipomoea pes-caprae (L.) R. Br. ssp. pes-caprae
      SY= Convolvulus pes-caprae L.
    Ipomoea trifida (Kunth) G. Don
        Not in North America north of Mexico
      SY= Convolvulus trifidus Kunth
  CRASSULACEAE
    Hylotelephium sieboldii (Sweet ex Hook.) H. Ohba.
      SY= Sedum sieboldii Sweet ex Hook.
    Kalanchoe laxiflora Baker
      SY= Bryophyllum crenatum Baker
    Kalanchoe marmorata Baker
        Not in North America north of Mexico
      SY= Kalanchoe grandiflora A. Rich., non Wallich ex Wight & Arn.
    Sedum diffusum S. Wats.
        Not in North America north of Mexico
    Villadia misera (Lindl.) R.T. Clausen
        Not in North America north of Mexico
  CUCURBITACEAE
    Cucurbita ficifolia Bouché
        Not in North America north of Mexico
      SY= Pepo ficifolia (Bouché) Britt.
    Cucurbita okeechobeensis (Small) Bailey ssp. martinezii (L.H. Bailey) Andres & Nabhan ex T. Walters
        Not in North America north of Mexico
    Sicyos collinus B.L. Robins. & Fern.
  CUSCUTACEAE
    Cuscuta vivipara T. Beliz, sp. nov. ined.
  CYPERACEAE
    Carex bonplandii Kunth
        Not in North America north of Mexico
    Carex dioica L.
        Not in North America north of Mexico
    Carex houstonii Torr.
        Not in North America north of Mexico
    Carex magellanica Lam. ssp. magellanica
        Not in North America north of Mexico
    Carex melanocarpa Cham. ex Trautv.
        Not in North America north of Mexico
    Carex nardina Fries var. nardina
        Not in North America north of Mexico
    Carex schiedeana Kunze
        Not in North America north of Mexico
    Carex stellata Mackenzie
        Not in North America north of Mexico
    Carex stenocarpa Turcz. ex Krecz.
    Cyperus esculentus L. var. esculentus
        Not in North America north of Mexico
    Cyperus manimae Kunth var. divergens (Kunth) Kükenth.
        Not in North America north of Mexico
    Cyperus owanii Boeckl.
        Not in North America north of Mexico
    Eriophorum altaicum Meinsh. var. altaicum
    Fimbristylis harrisii (Britt.) J.E. Adams
    Machaerina mariscoides (Gaud.) J. Kern ssp. mariscoides
    Rhynchospora chalarocephala Fern. & Gale var. angusta Gale
    Rhynchospora polyphylla Vahl
    Schoenus ferrugineus L.
        Not in North America north of Mexico
  DIOSCOREACEAE
    Dioscorea latifolia Benth.
        Not in North America north of Mexico
    Dioscorea sagittata Poir.
        Not in North America north of Mexico
  ELAEAGNACEAE
    Elaeagnus orientalis L.
  EMPETRACEAE
    Ceratiola falcautla Gandy
        Not in North America north of Mexico
  ERICACEAE
    Arctostaphylos australis Eastw.
        Not in North America north of Mexico
    Arctostaphylos bolensis P.V. Wells
        Not in North America north of Mexico
  EUPHORBIACEAE
    Antidesma bunias (L.) Spreng.
    Chamaesyce torralbasii (Urban) Millsp.
      SY= Euphorbia torralbasii Urban
    Coryphantha scolymoides (Scheidw.) Berger
        Not in North America north of Mexico
    Croton corylifolius Lam.
        Not in North America north of Mexico
    Croton flavens L.
    Euphorbia josei Oudejans
    Garcia nutans Vahl
      SY= Garcia mayana Britt.
    Jatropha macrorhiza Benth. var. macrorhiza
        Not in North America north of Mexico
  FABACEAE
    Acacia catechu (L. f.) Willd.
        Not in North America north of Mexico
    Acacia richii Gray
    Acacia schaffneri (S. Wats.) F.J. Herm. var. schaffneri
    Acacia scleroxyla Tussac
    Acacia terminalis (Salisb.) J.F. Macbr.
        Not in North America north of Mexico
    Arachis glabrata Benth.
        Not in North America north of Mexico
    Argythamnia brandegei Millsp. var. brandegei
        Not in North America north of Mexico
      SY= Ditaxis brandegei (Millsp.) Rose & Standl.
    Astragalus anemophilus Greene
        Not in North America north of Mexico
    Astragalus bryogenes Barneby
        Not in North America north of Mexico
    Astragalus carminis Barneby
        Not in North America north of Mexico
    Astragalus magdalenae Greene var. niveus (Rydb.) Barneby
        Not in North America north of Mexico
      SY= Astragalus niveus Rydb.
    Bauhinia divaricata L.
        Not in North America north of Mexico
    Bauhinia macrantha Benth. ex Hemsl.
        Not in North America north of Mexico
      SY= Bauhinia macrantha Benth. ex Hemsl. var. grayana Wunderlin
    Bauhinia ungulata L.
    Caesalpinia peninsularis (Britt.) Eifert
    Calliandra caracasana Jacq.
      SY= Zapoteca caracasana (Jacq.) H. Hernández
    Canavalia campylocarpa Piper
      SY= Canavalia dictyota Piper
    Chamaecrista absus (L.) Irwin & Barneby var. absus
      SY= Cassia absus L.
    Chamaecrista nictitans (L.) Moench ssp. nictitans var. jaliscensis (Greenm.) Irwin & Barneby
    Chamaecrista ramosa (Vogel) Irwin & Barneby
        Not in North America north of Mexico
      SY= Cassia ramosa Vogel
    Crotalaria pilosa P. Mill.
    Cytisus ×praecox Bean [multiflorus × purgans]
        Not in North America north of Mexico
    Dalea cliffortiana Willd.
        Not in North America north of Mexico
      SY= Parosela dalea (L.) Britt.
    Dalea mexiae Barneby
        Not in North America north of Mexico
    Dalea versicolor Zucc. var. glabrescens (Rydb.) Barneby
        Not in North America north of Mexico
      SY= Dalea wislizeni Gray
    Desmanthus bicornutus S. Wats.
        Not in North America north of Mexico
    Desmodium angustifolium (Kunth) D.C.
        Not in North America north of Mexico
      SY= Meibomia angustifolia (Kunth) Kuntze
    Inga fastulosa (Jacq.) Willd.
        Not in North America north of Mexico
    Lathyrus parviflorus S. Wats.
        Not in North America north of Mexico
    Leucaena greggii S. Wats.
        Not in North America north of Mexico
    Lupinus hartmannii C.P. Sm.
    Lupinus hartwegii Lindl.
        Not in North America north of Mexico
    Lupinus latifolius Lindl. ex Agardh ssp. wigginsii (C.P. Sm.) Kenney & D. Dunn
        Not in North America north of Mexico
      SY= Lupinus latifolius Lindl var. wigginsii C.P. Sm.
    Medicago secundiflora Dur.
    Psorothamnus emoryi (Gray) Rydb. var. arenarius (Brandeg.) Barneby
        Not in North America north of Mexico
    Quercus variabilis Blume
        Not in North America north of Mexico
      SY= Quercus chinensis Bunge
    Senna durangensis (Rose) Irwin & Barneby var. durangensis
        Not in North America north of Mexico
      SY= Cassia durangensis Rose
    Senna fructicosa (P. Mill.) Irwin & Barneby
      SY= Cassia fructicosa P. Mill.
    Senna pendula (Humb. & Bonpl. ex Willd.) Irwin & Barneby var. pendula
      SY= Cassia pendula Humb. & Bonpl. ex Willd.
    Senna rostrata (Mart.) Irwin & Barneby
        Not in North America north of Mexico
    Trifolium ambiguum Bieb.
        Not in North America north of Mexico
    Trifolium minutissimum Heller & Zoh.
    Trifolium monanthum Gray ssp. vaughanae J. Gillett
        Not in North America north of Mexico
    Trifolium repens var. giganteum Larg.-Fossat
        Not in North America north of Mexico
    Trifolium suffocatum L.
    Ulex minor Roth
      SY= Ulex nanus T.F. Forst. ex Symons
    Vicia americana Muhl. ex Willd. ssp. mexicana C.R. Gunn
    Vicia ervilia (L.) Willd.
    Vicia nigricans Hook. & Arn. ssp. nigricans
    Vigna caracalla (L.) Verdc.
        Not in North America north of Mexico
  FUMARIACEAE
    Corydalis capnoides (L.) Pers.
  GENTIANACEAE
    Centaurium littorale (D. Turner) Gilmour
    Gentiana verna L.
        Not in North America north of Mexico
    Gentianella crinita (Froel.) G. Don ssp. nevadensis (Gilg) Weaver & Rudenberg
        Not in North America north of Mexico
  GERANIACEAE
    Geranium nepalense Sweet
        Not in North America north of Mexico
  GESNERIACEAE
    Cyrtandra macrantha C.B. Clarke
        Not in North America north of Mexico
  GROSSULARIACEAE
    Ribes ×gardonianum Lem.
    Ribes ×utile Jancz.
      SY= Grossularia utilis (Jancz.) Berger
    Ribes orientale Desf.
        Not in North America north of Mexico
  HELICONIACEAE
    Heliconia aurantiaca Ghiesbr. ex Lem.
        Not in North America north of Mexico
  HIPPOCASTANACEAE
    Aesculus ×arnoldiana Sarg.
        Not in North America north of Mexico
  HYDRANGEACEAE
    Deutzia gracilis Sieb. & Zucc.
    Philadelphus caucasicus Koehne
        Not in North America north of Mexico
    Schizophragma hydrangeoides Sieb. & Zucc.
  HYDROCHARITACEAE
    Halophila decipiens Ostenf. var. pubescens den Hartog
        No type cited
    Stratiotes aloides L.
        Not in North America north of Mexico
  HYDROPHYLLACEAE
    Nama macranthum (Choisy) Brand
    Phacelia vossii Atwood
        Not in North America north of Mexico
  IRIDACEAE
    Crocus sativus L.
        Not in North America north of Mexico
    Gladiolus lemoinei hort.
        Not in North America north of Mexico
    Gladiolus primulinus E.G. Baker
        Not in North America north of Mexico
    Iris ×vinicolor Small (pro sp.)
      SY= Iris chrysophoenicia Small
      SY= Iris lilacinaurea Alexander
      SY= Iris nelsonii Randolph
    Iris lutescens Lam.
        Not in North America north of Mexico
      SY= Iris chamaeiris Bertol.
    Iris tingitana Boiss. & Reut.
        Not in North America north of Mexico
      SY= Xiphion fontanesii Baker
      SY= (Boiss. & Reut.) Rodionenko
    Romulea rosea (L.) Ecklon var. rosea
      SY= Ixia rosea L.
    Tigridia pavonia (L. f.) DC.
        Not in North America north of Mexico
  JUNCACEAE
    Juncus balticusWilld. var. balticus
      SY= Juncus arcticus Willd. ssp. balticus (Willd.) Hyl.
      SY= Juncus arcticus Willd. var. balticus (Willd.) Trautv.
    Juncus prominens (Buch.) Miyabe & Kudo
        Not in North America north of Mexico
    Luzula arcuata (Wahlenb.) Sw. ssp. arcuata (Wahlenb.) Sw.
        Not in North America north of Mexico
  LAMIACEAE
    Galeopsis pubescens Bess.
    Galeopsis segetum Neck.
      SY= Galeopsis villosa Huds.
    Marrubium incanum Desr.
        Not in North America north of Mexico
      SY= Marrubium candidissimum auct. non L.
    Mentha longifolia (L.) Huds.
        Not in North America north of Mexico
      SY= Mentha longifolia (L.) Huds. var. mollissima (Borkh.) Rouy
      SY= Mentha longifolia (L.) Huds. var. undulata (Willd.) Fiori
      SY= Mentha spicata L. var. longifolia L.
      SY= Mentha sylvestris L.
    Monarda citridora Cerv. ex Lag. var. attenuata Scora
        Not in North America north of Mexico
    Monarda dressleri Scora
        Not in North America north of Mexico
    Poliomintha longiflora Gray var. congesta Irving
        Not in North America north of Mexico
    Salvia setosa Fern.
        Not in North America north of Mexico
    Scutellaria minor Huds.
        Not in North America north of Mexico
    Stachys cretica L.
        Not in North America north of Mexico
      SY= Stachys germanica L. var. italica (P. Mill.) Briq.
      SY= Stachys italica P. Mill.
    Stachys recta L.
  LAURACEAE
    Cinnamomum mexicanum (Meisn.) Kosterm.
      SY= Phoebe mexicana Meisn.
    Cinnamomum zeylanicum Garcin ex Blume
        Not in North America north of Mexico
  LENTIBULARIACEAE
    Utricularia guyanensis A. DC.
        Not in North America north of Mexico
      SY= Utricularia peckii Blake
  LILIACEAE
    Allium carinatum L.
        Not in North America north of Mexico
    Allium moly L.
        Not in North America north of Mexico
    Allium serratum S. Wats.
    Allium vineale ssp. kochii (Lange) Richter
    Chionodoxa cretica Boiss. & Heldr.
        Not in North America north of Mexico
    Crinum amabile Ker-Gawl.
        Not in North America north of Mexico
    Fritillaria imperialis L.
        Not in North America north of Mexico
    Hippeastrum reginae (L.) Herbert
        Not in North America north of Mexico
      SY= Amaryllis reginae L.
    Hippeastrum striatum (Lam.) H.E. Moore
        Not in North America north of Mexico
      SY= Amaryllis striatum Lam.
    Hippeastrum vittatum (L'Hér.) Herbert
        Not in North America north of Mexico
      SY= Amaryllis vittatum L'Hér.
    Lilium concolor Salisb.
        Not in North America north of Mexico
    Lilium pensylvanicum Ker-Gawl.
        Not in North America north of Mexico
      SY= Lilium dauricum Ker-Gawl.
    Polygonatum biflorum (Walt.) Ell. var. biflorum
        Not in North America north of Mexico
      SY= Convallaria biflora Walt.
    Sansevieria cylindrica Bojer ex Hook.
        Not in North America north of Mexico
    Sansevieria longiflora Sims
        Not in North America north of Mexico
    Scilla biflora L.
        Not in North America north of Mexico
    Tulipa clusiana DC.
        Not in North America north of Mexico
    Zephyranthes bifolia (Aubl.) M. Roemer
    Zigadenus volcanicus Benth.
  LIMNOCHARITACEAE
    Limnocharis flava (L.) Buch.
        Not in North America north of Mexico
  MALPIGHIACEAE
    Galphimia elegans Baill.
        Not in North America north of Mexico
    Galphimia glauca Cav.
        Not in North America north of Mexico
      SY= Thryallis glauca (Cav.) Kuntze
    Heteropteris platyptera DC.
        Not in North America north of Mexico
    Hiraea faginea (Sw.) Niedenzu
        Not in North America north of Mexico
  MALVACEAE
    Abelmoschus manihot (L.) Medik.
        Not in North America north of Mexico
      SY= Hibiscus manihot L.
    Abutilon glabriflorum Hochr.
        Not in North America north of Mexico
    Alcea pallida (Waldst. & Kit. ex Willd.) Waldst. & Kit.
        Not in North America north of Mexico
    Lagunaria patersonii (Andr.) G. Don
        Not in North America north of Mexico
    Malvastrum brasiliense Desr.
        Not in North America north of Mexico
    Sida javensis Cav.
        Not in North America north of Mexico
    Wissadula contracta (Link) R.E. Fries
  MELIACEAE
    Aphanamixis grandifolia Blume
        Not in North America north of Mexico
    Azadirachta indica A. Juss.
        Not in North America north of Mexico
    Entandrophragma delevoyi DeWild
        Not in North America north of Mexico
  MYRSINACEAE
    Ardisia crispa (Thunb.) A. DC.
        Not in North America north of Mexico
  MYRTACEAE
    Callistemon viminalis (Soland. ex Gaertn.) Cheel
        Not in North America north of Mexico
  NYCTAGINACEAE
    Bougainvillea spectabilis Willd.
        Not in North America north of Mexico
    Mirabilis aggregata (Ortega) Cav.
        Not in North America north of Mexico
      SY= Allionia aggregata (Ortega) Spreng.
    Mirabilis longiflora L. var. longiflora
        Not in North America north of Mexico
    Mirabilis violacea (L.) Heimerl
        Not in North America north of Mexico
      SY= Allionia violacea L.
      SY= Oxybaphus violaceus (L.) Choisy
  NYMPHAEACEAE
    Nymphaea capensis Thunb. var. capensis
    Nymphaea glandulifera Rodschied
        Not in North America north of Mexico
      SY= Nymphaea blanda G.F.W. Mey.
  OCHNACEAE
    Ouratea mossambicensis Klotzsch
  OLEACEAE
    Haenianthus salicifolius Griseb. var. salicifolius
    Jasminum elongatum (Berg.) Willd.
        Not in North America north of Mexico
      SY= Jasminum amplexicaule Buch.-Ham. ex G. Don
      SY= Jasminum undulatum auct. non Ker-Gawl.
    Ligustrum ibota Sieb. ex Sieb. & Zucc.
         
    Syringa ×chinensis Willd.
        Not in North America north of Mexico
  ONAGRACEAE
    Brachionidium distichophylla (Trin.) Stapf.
        Not in North America north of Mexico
    Camissona dentata (Cav.) Reiche
        Not in North America north of Mexico
      SY= Oenothera dentata Cav.
    Fuchsia magellanica Lam. var. macrostema (Ruiz & Pavón) Munz
        Not in North America north of Mexico
      SY= Fuchsia gracilis Lindl.
      SY= Fuchsia macrostema Ruiz & Pavón
    Gaura hexandra Ortega ssp. hexandra
        Not in North America north of Mexico
      SY= Gaura tripetala Cav.
    Lopezia coronata Andr.
        Not in North America north of Mexico
    Spiranthes bicolor (Ker-Gawl.) Lindl.
        Not in North America north of Mexico
      SY= Beadlea bicolor (Ker-Gawl.) Garay
  ORCHIDACEAE
    Brachionidium parvum Cogn.
        Not in North America north of Mexico
    Cattleya labiata Lindl.
        Not in North America north of Mexico
    Caularthron bicornutum (Hook.) Raf.
        Not in North America north of Mexico
      SY= Epidendrum bicornutum Hook.
    Corymborchis flava (Sw.) Kuntze
        Not in North America north of Mexico
    Cranichis diphylla Sw.
        Not in North America north of Mexico
    Cyrtopodium andersonii (Lamb. ex Andr.) R. Br. ex Ait. f.
        Not in North America north of Mexico
    Dactylorhiza incarnata (L.) Soó
    Dendrobium scopa Lindl.
        Not in North America north of Mexico
    Elleanthus linifolius K. Presl
        Not in North America north of Mexico
    Encyclia bifida (Aubl.) Britt. & Wilson
        Not in North America north of Mexico
      SY= Encyclia papilionacea (Vahl) Schlechter
      SY= Epidendrum bifidum Aubl.
      SY= Epidendrum brittonianum A.D. Hawkes
      SY= Epidendrum fucatum Lindl.
    Encyclia fucata (Lindl.) Britt. & Millsp.
        Not in North America north of Mexico
    Encyclia rubra (Lindl.) Britt. & Millsp.
        Not in North America north of Mexico
    Epidendrum ibaguense Kunth
        Not in North America north of Mexico
    Epidendrum lacerum Lindl.
        Not in North America north of Mexico
      SY= Amphiglottis lacera (Lindl.) Britt.
    Epidendrum nutans Sw.
        Not in North America north of Mexico
    Epidendrum pallidiflorum Hook.
        Not in North America north of Mexico
      SY= Amphiglottis pallidiflora (Hook.) Britt.
    Epidendrum patens Sw.
        Not in North America north of Mexico
    Epidendrum pseudoramosum Schlechter
        Not in North America north of Mexico
    Epidendrum serrulatum Sw.
        Not in North America north of Mexico
    Habenaria quinqueseta Lindl. var. macroceratitis (Willd.) Luer
      SY= Habenaria habenaria (L.) Small
    Leochilus labiatus (Sw.) Kuntze
        Not in North America north of Mexico
    Liparis harrisii Fawcett & Rendle
        Not in North America north of Mexico
    Oncidium cebolleta (Jacq.) Sw.
        Not in North America north of Mexico
    Oncidium lemonianum Lindl.
        Not in North America north of Mexico
      SY= Oncidium intermedium Bertero
    Oncidium papilio Lindl.
        Not in North America north of Mexico
    Orchis purpurella T.& T.A. Steph.
        Not in North America north of Mexico
    Pleurothallis odontopetala Reichenb. f.
        Not in North America north of Mexico
    Pleurothallis quadrifida (Llave & Lex.) Lindl.
        Not in North America north of Mexico
    Restrepiella ophiocephala (Lindl.) Garay & Dunsterville
        Not in North America north of Mexico
    Spathoglottis elmeri Ames
    Spiranthes lanceolata (Aubl.) Léon var. luteoalba (Reichenb. f.) Luer
        Not in North America north of Mexico
      SY= Sacoila lanceolata (Aubl.) Garay var. luteoalba (Reichenb. f.) Sauleda, Wunderlin & B.F. Hansen
    Xylobium palmifolium (Sw.) Benth.
        Not in North America north of Mexico
  OROBANCHACEAE
    Orobanche cernua Loefl.
    Orobanche crenata Forsk.
    Orobanche dugesii (S. Wats.) Munz
      SY= Aphyllon dugesii S. Wats.
    Orobanche multicaulis Brandeg. var. palmeri Munz
        Not in North America north of Mexico
  OXALIDACEAE
    Oxalis articulata Savigny
        Not in North America north of Mexico
  PANDANACEAE
    Pandanus dubius Spreng.
        Not in North America north of Mexico
      SY= Pandanus pacificus Veitch ex Masters
  PAPAVERACEAE
    Papaver nudicaule L. ssp. nudicaule
        Not in North America north of Mexico
  PEDALIACEAE
    Proboscidea parviflora (Woot.) Woot. & Standl. ssp. gracillima (Hevly) Bretting
    Proboscidea parviflora (Woot.) Woot. & Standl. ssp. sinaloensis (Van Eselt.) Bretting
        Not in North America north of Mexico
  PIPERACEAE
    Peperomia polystachya (L.) Hook.
        Not in North America north of Mexico
    Peperomia simplex Desv. ex Buch.-Ham.
    Piper aequale Vahl
        Not in North America north of Mexico
    Piper asperifolium Pavón
        Not in North America north of Mexico
    Piper reticulatum L.
        Not in North America north of Mexico
  PLUMBAGINACEAE
    Limonium reniforme (Girard) Linchevskii
        Not in North America north of Mexico
      SY= Limonium perfoliatum (Karelin ex Boiss.)
  POACEAE
    Acroceras oryzoides (Sw.) Stapf
        Not in North America north of Mexico
    Agropyron cristatum (L.) Gaertn. ssp. cristatum
        Not in North America north of Mexico
    Agrostis anadyrensis Socz.
        Not in North America north of Mexico
    Agropyron fragile (Roth) P. Candargy ssp. mongolicum (Keng) D.R. Dewey
        Not in North America north of Mexico
      SY= Agropyron mongolicum Keng
    Agrostis nebulosa Boiss. & Reut.
      SY= Neoschischkinia nebulosa (Boiss. & Reut.) Tzvelev
    Andropogon liebmannii Hack.
        Not in North America north of Mexico
    Astrebla elymoides Bailey & F. Muell. ex F.M. Bailey
        Not in North America north of Mexico
    Astrebla lappacea (Lindl.) Domin
        Not in North America north of Mexico
      SY= Danthonia lappacea Lindl.
    Astrebla pectinata (Lindl.) F. Muell.
        Not in North America north of Mexico
      SY= Danthonia pectinata Lindl.
    Avena brevis Roth
        Not in North America north of Mexico
    Avena nuda L.
        Not in North America north of Mexico
    Avena sterilis L. ssp. ludoviciana (Durieu) Gill & Magne
      SY= Avena ludoviciana Durieu
      SY= Avena persica Steud.
      SY= Avena sterilis L. var. ludoviciana (Durieu) Nyman
    Bambusa bambos (L.) Voss
    Bambusa oldhamii W. Munro
        Not in North America north of Mexico
    Bothriochloa ambigua S.T. Blake
        Not in North America north of Mexico
    Bothriochloa decipiens (Hack.) C.E. Hubbard
    Bothriochloa erianthoides (F. Muell.) C.E. Hubbard
    Bothriochloa insculpta (Hochst.) A. Camus
        Not in North America north of Mexico
    Brachiaria dictyoneura (Fig. & de Not.) Stapf
        Not in North America north of Mexico
    Brachiaria mollis (Sw.) Parodi
      SY= Panicum molle Sw.
    Brachypodum pinnatum (L.) Beauv. ssp. caespitosum (Host) Hack.
        Not in North America north of Mexico
      SY= Brachypodum caespitosum (Host) Roemer & J.A. Schultes
    Bromus biebersteinii Roemer & J.A. Schultes
        Not in North America north of Mexico
      SY= Bromopsis biebersteinii (Roemer & J.A. Schultes) Holub
    Bromus squarrosus L. var. villosus (K.C. Gmel.) Reichenb.
        Not in North America north of Mexico
      SY= Bromus villosus K.C. Gmel.
    Calamagrostis epigeios (L.) Roth ssp. macrolepis (Litv.) Tzvelev
    Calamagrostis epigeios (L.) Roth ssp. meinshausenii Tzvelev
    Calamagrostis ×kolymensis Komarov (pro sp.)
    Calamagrostis leonardii Chase
        Not in North America north of Mexico
    Chloris berroi Arech.
        Not in North America north of Mexico
    Chusquea coronalis Söderstrom & Calderón
    Cortaderia rudiuscula Stapf
        Not in North America north of Mexico
    Cymbopogon schoenanthus (L.) Spreng.
        Not in North America north of Mexico
    Cynodon arcuatus J. Presl
        Not in North America north of Mexico
    Cynodon barberi Rang. & Tad.
        Not in North America north of Mexico
    Cynodon dactylon (L.) Pers. var. aridus Harlan & de Wet
    Danthonia racemosa R. Br.
        Not in North America north of Mexico
    Dendrocalamus gigantea Munro
    Deschampsia cespitosa (L.) Beauv. ssp. bottonia (Wahl.) Tzvelev
      SY= Deschampsia bottonia (Wahl.) Trin.
      SY= Deschampsia cespitosa (L.) Beauv. var. bottonia (Wahl.) Vasey
    Deschampsia cespitosa (L.) Beauv. ssp. obensis (Rosh.) Tzvelev
        Not in North America north of Mexico
      SY= Deschampsia obensis Rosh.
    Dichanthelium sabulorum (Lam.) Gould & C.A. Clarke var. sabulorum
        Not in North America north of Mexico
    Dichanthium caricosum (L.) A. Camus
    Dichelachne montana Endl.
        Not in North America north of Mexico
    Digitaria argyrograpta (Nées) Stapf
        Not in North America north of Mexico
    Digitaria brownii (Roemer & J.A. Schultes) Hughes
        Not in North America north of Mexico
    Digitaria debilis (Desf.) Willd.
        Not in North America north of Mexico
    Digitaria diagonalis (Nées) Stapf
        Not in North America north of Mexico
    Digitaria didactyla Willd.
        Not in North America north of Mexico
    Digitaria divaricatissima (R. Br.) Hughes
        Not in North America north of Mexico
    Digitaria diversinervis (Nées) Stapf
        Not in North America north of Mexico
    Digitaria eriostachya Mez
        Not in North America north of Mexico
    Digitaria exilis (Kippist) Stapf
        Not in North America north of Mexico
    Digitaria glauca A. Camus
        Not in North America north of Mexico
    Digitaria herpocladus Pilger
        Not in North America north of Mexico
    Digitaria iburua Stapf
        Not in North America north of Mexico
    Digitaria kilimandscharica Mez
        Not in North America north of Mexico
    Digitaria macroglossa Henr.
        Not in North America north of Mexico
    Digitaria monodactyla (Nées) Stapf
        Not in North America north of Mexico
    Digitaria natalensis Stent
        Not in North America north of Mexico
    Digitaria phaeothrix (Trin.) Parodi
        Not in North America north of Mexico
    Digitaria seriata Stapf
        Not in North America north of Mexico
    Digitaria smutsii Stent
        Not in North America north of Mexico
    Digitaria swalleniana Henr.
    Digitaria swazilandensis Stent
        Not in North America north of Mexico
    Digitaria timorensis (Kunth) Balansa
        Not in North America north of Mexico
    Digitaria tomentosa (Koen. ex Rottl.) Henr.
      SY= Leptoloma tomentosa (Koen. ex Rottl.) Gould
    Digitaria tricholaeinoides Stapf
        Not in North America north of Mexico
    Digitaria uniglumis (A. Rich.) Stapf
        Not in North America north of Mexico
    Digitaria valida Stent
        Not in North America north of Mexico
    Echinochloa spectabilis (Nees) Link
    Ehrharta capensis Thunb.
    Elymus kronokensis (Komarov) Tzvelev
    Elymus kronokensis (Komarov) Tzvelev ssp. kronkensis
    Elymus kronokensis (Komarov) Tzvelev ssp. subalpinus (L. Neum.) Tzvelev
      SY= Agropyron boreale (Turcz.) Drobov
      SY= Elymus alaskanus ssp. borealis (Turcz.) Melderis
      SY= Triticum boreale Turcz.
    ×Elyhordeum piperi (Bowden) Bowden
        Not in North America north of Mexico
      SY= ×Elymordeum piperi Bowden
      SY= ×Elytesion piperi (Bowden) Barkworth
    Enteropogon macrostachya (Hochst.) Munro ex Benth.
        Not in North America north of Mexico
      SY= Chloris macrostachya Hochst.
    Eragrostis alba Presl
        Not in North America north of Mexico
    Eragrostis ciliaris (l.) R. Br. var. brachystachya Boiss.
    Eragrostis ciliaris var. laxa Kuntze
    Eragrostis obtusa Munro ex Stapf
        Not in North America north of Mexico
    Eragrostis secundiflora J. Presl. ssp. secundiflora
      SY= Eragrostis beyrichii J.G. Sm.
      SY= Eragrostis oxylepis var. beyrichii (J.G. Sm.) Shinners
    Eragrostis viscosa (Retz.) Trin.
        Not in North America north of Mexico
    Eremopyrum squarrosum (Link) Jaubert & Spach
    Eulalia fulva (R. Br.) Kunth
        Not in North America north of Mexico
    Festuca amethystina L.
        Not in North America north of Mexico
    Festuca drymeia Mert. & Koch
    Festuca kitaibeliana J.A. Schultes
        Not in North America north of Mexico
    Festuca rigescens (Presl) Kunth
        Not in North America north of Mexico
    Festuca vivipara (L.) Sm. ssp. vivipara
        Not in North America north of Mexico
      SY= Festuca ovina L. var. vivipara L.
    Helictotrichon dahuricum (Komarov) Kitagawa
    Hierochloe hirta (Schrank) Borbás ssp. hirta
        Not in North America north of Mexico
      SY= Hierochloe odorata (L.) Beauv. ssp. hirta (Schrank) Tzvelev
      SY= Anthoxanthum hirtum (Schrank) Y. Schouten & Veldkamp
    Hierochloe odorata (L.) Beauv. ssp. dahurica (Trin.) Printz
        Not in North America north of Mexico
    Hilaria cenchroides Kunth
        Not in North America north of Mexico
    Hordeum pusillum Nutt. ssp. euclaston (Steud.) Hauman
      SY= Hordeum euclaston Steud.
    Hordeum secalinum Schreb.
        Not in North America north of Mexico
      SY= Hordeum nodosum auct. non L.
    Hordeum spontanum K. Koch
        Not in North America north of Mexico
    Isachne myosotis Nées
        Not in North America north of Mexico
    Isachne polygonoides (Lam.) Doell
        Not in North America north of Mexico
    Ischaemum aureum (Hook. & Arn.) Hack.
      SY= Spodiopogon aureus Hook. & Arn.
    Ischaemum digitatum Brongn.
        Not in North America north of Mexico
    Leptochloa chinensis (L.) Nees
    Lepturus filiformis (Roth) Trin.
      SY= Parapholis filiformis (Roth) C.E. Hubbard
    Leymus ajanensis (Vassiljev) Tzvelev
        Not in North America north of Mexico
      SY= Elymus interior Hultén
    Leymus racemosus (Lam.) Tzvelev ssp. sabulosus (Bieb.) Tzvelev
        Not in North America north of Mexico
      SY= Elymus sabulosus Bieb.
    Leymus secalinus (Georgi) Tzvelev
        Not in North America north of Mexico
      SY= Elymus dasystachys Trin.
    Lolium ×aschersoniana (Dorfl.) Kartesz, comb. nov. ined.
      SY= Festuca ×aschersoniana Dorfl.
    Melica ciliata L.
        Not in North America north of Mexico
    Miscanthus nepalensis (Trin.) Hack.
    Molinia caerulea (L.) Moench ssp. arundinacea (Schrank) K. Rich.
        Not in North America north of Mexico
      SY= Molinia caerulea (L.) Moench ssp. litoralis (Host) H. Paul
      SY= Molinia litoralis Host
    Panicum laevifolium Hack.
        Not in North America north of Mexico
    Panicum pilosum Sw.
        Not in North America north of Mexico
    Panicum prolutum F. Muell.
        Not in North America north of Mexico
    Paspalum ×purpureum K. Schum.
        Not in North America north of Mexico
    Paspalum bertonii Hack.
        Not in North America north of Mexico
    Paspalum clandestinum Hochst.
        Not in North America north of Mexico
    Paspalum commersonii Lam.
        Not in North America north of Mexico
    Paspalum conjugatum Berg. var. pubescens Doell
        Not in North America north of Mexico
    Paspalum nervosum (Nées) Trin.
        Not in North America north of Mexico
    Pennisetum macrostachyum (Brongn.) Trin.
        Not in North America north of Mexico
    Pennisetum orientale (Willd.) L.C. Rich.
        Not in North America north of Mexico
    Pennisetum schimperi Steud.
        Not in North America north of Mexico
    Phalaris coerulescens Desf.
        Not in North America north of Mexico
    Phalaris commutata Roemer & J.A. Schultes
        Not in North America north of Mexico
    Phleum graecum Boiss. & Heldr.
    Piptatherum coerulescens (Desf.) Beauv.
        Not in North America north of Mexico
      SY= Oryzopsis coerulescens (Desf.) Hack.
    Piptochaetium stipoides (Trin. & Rupr.) Hack. var. purpurescens (Hack.) Parodi
        Not in North America north of Mexico
      SY= Piptochaetium ovatum (Trin.) Desv. var purpurascens Hack.
    Poa flabellata (Lam.) Hook. f.
        Not in North America north of Mexico
    Poa remota Fors.
        Not in North America north of Mexico
    Polytoca macrophylla Benth.
        Not in North America north of Mexico
    Saccharum arundinaceum Retz.
        Not in North America north of Mexico
    Saccharum barberi Jeswiet
    Saccharum robustum Brandes & Jesw. ex Grassl f.
        Not in North America north of Mexico
    Saccharum sinense Roxb.
    Sclerostachya fusca (Roxb.) A. Camus
        Not in North America north of Mexico
    Sehima nervosum (Rottl.) Stapf
        Not in North America north of Mexico
    Setaria longiseta Beauv.
        Not in North America north of Mexico
    Setaria paniculifera (Steud.) Fourn.
        Not in North America north of Mexico
    Setaria poiretiana (J.A. Schultes) Kunth
        Not in North America north of Mexico
    Setaria tenax (L.C. Rich.) Desv.
        Not in North America north of Mexico
    Sinocalamus oldhamii (Munro) McClure
    Sorghum caudatum (Hack.) Stapf
        Not in North America north of Mexico
    Sporobolus fertilis (Steud.) Clayton
        Not in North America north of Mexico
    Stipa elegantissima Labill.
        Not in North America north of Mexico
    Stipa papposa Nées
        Not in North America north of Mexico
    Stipa pennata L.
        Not in North America north of Mexico
    Stipa splendens Trin.
        Not in North America north of Mexico
    Stipa tenacissima L.
        Not in North America north of Mexico
    Taeniatherum crinitum (Schreb.) Nevski
        Not in North America north of Mexico
    Themeda australis (R. Br.) Stapf
        Not in North America north of Mexico
    Themeda triandra Forsk.
        Not in North America north of Mexico
    Thysanolaena maxima (Roxb.) Kuntze
        Not in North America north of Mexico
      SY= Agrostis maxima Roxb.
    Trachypogon montufari (Kunth) Nees
        Not in North America north of Mexico
      SY= Andropogon montufari Kunth
    Tripsacum latifolium A.S. Hitchc.
        Not in North America north of Mexico
    Triraphis mollis R. Br.
        Not in North America north of Mexico
    Trisetum latifolium A.S. Hitchc.
    Triticum compactum Host
    Triticum monococcum L.
    Triticum polonicum L.
    Urochloa bulbodes (Steud.) Stapf
        Not in North America north of Mexico
    Urochloa pullalans Stapf
        Not in North America north of Mexico
    Urochloa stolonifera (Gooss.) L. Chippindale
        Not in North America north of Mexico
    Vulpia geniculata (L.) Link
        Not in North America north of Mexico
      SY= Festuca geniculata L.
    Zea diploperennis Iltis, Doebley & Guzman
        Not in North America north of Mexico
    Zea mays L. var. everta (Sturtev.) Bailey
        Not in North America north of Mexico
    Zea mays L. var. japonica (Van Houtte) Wood
        Not in North America north of Mexico
    Zea mays L. var. tunicata Larr. ex St.-Hil.
        Not in North America north of Mexico
  POLEMONIACEAE
    Loeselia mexicana (Lam.) Brand
    Phlox acuminata Pursh
        Not in North America north of Mexico
  POLYGALACEAE
    Polygala monticola Kunth
        Not in North America north of Mexico
    Polygala myrtifolia L.
        Not in North America north of Mexico
    Polygala nitida Brandeg. var. nitida
        Not in North America north of Mexico
    Polygala penaea L. ssp. penaea
        Not in North America north of Mexico
      SY= Bodiera penaea (L.) DC.
    Antigonon flavescens S. Wats.
    Eriogonum hastatum Wiggins
        Not in North America north of Mexico
    Polygonum polycnemoides Jaubert & Spach var. oliveri Jaubert & Spach
    Rumex rhaponticum L.
        Not in North America north of Mexico
    Rumex vesicarius L.
        Not in North America north of Mexico
  PONTEDERIACEAE
    Monochoria hastata (L.) Solms
  PORTULACACEAE
    Claytonia acutifolia Pallas ex J.A. Schultes
        Not in North America north of Mexico
    Montia rivularis K.C. Gmel.
        Not in North America north of Mexico
  POTAMOGETONACEAE
    Potamogeton ×bottnicus Hagstr.
    Potamogeton ×cooperi (Fryer) Fryer
      SY= Potamogeton ×cymatodes Aschers. & Graebn.
    Potamogeton ×gessnacensis Fisch.
    Potamogeton ×kochii Schultz
      SY= Potamogeton ×spathulatus Schrad. ex Koch & Ziz
    Potamogeton ×prussicus Hagstr.
    Potamogeton ×pusilliformis Fisch.
      SY= Potamogeton ×intermedius Fisch.
    Potamogeton ×semenii Aschers. & Graebn.
    Potamogeton ×semifructus Bennett ex Aschers. & Graebn.
    Potamogeton ×subobtusus Hagstr.
    Potamogeton ×undulatus Wolfgang ex J.A. & J.H. Schultes (pro sp.)
    Potamogeton ×vilnensis Galinis.
  PRIMULACEAE
    Primula matsumurae Petitm.
        Not in North America north of Mexico
  PROTEACEAE
    Stenocarpus sinuatus (A. Cunningham) Endl.
  PYROLACEAE
    Pyrola rotundifolia L. var. rotundifolia
        Not in North America north of Mexico
  RANUNCULACEAE
    Caltha novae-zelandiae Hook. f.
        Not in North America north of Mexico
    Caltha obtusa Cheeseman
        Not in North America north of Mexico
    Clematis campaniflora Brot.
        Not in North America north of Mexico
    Condalia mexicana Schlecht.
        Not in North America north of Mexico
    Delphinium formosum Boiss. & A. Huet.
    Pulsatilla patens (L.) P. Mill. ssp. patens
        Not in North America north of Mexico
    Anemone multifida Poir. var. multifida
        Not in North America north of Mexico
      SY= Anemone patens L.
    Ranunculus circinatus Sibthorp
        Not in North America north of Mexico
      SY= Batrachium circinatum (Sibthorp) Reichenb.
    Ranunculus cordiger Viviani
    Ranunculus harveyi (Gray) Britt. var. australis (Brand) L. Benson
        Not in North America north of Mexico
    Ranunculus hydrocharoides Gray var. natans (Nées ex G. Don) L. Benson
        Not in North America north of Mexico
    Ranunculus marginatus d'Urv. var. marginatus
        Not in North America north of Mexico
    Ranunculus natans C.A. Mey.
        Not in North America north of Mexico
      SY= Ranunculus natans C.A. Mey var. typicus L. Benson
    Ranunculus pedatifidus Sm. var. pedatifidus
        Not in North America north of Mexico
  RHAMNACEAE
    Condalia mexicana Schlecht.
    Rhamnus crocea Nutt. ssp. insula (Kellogg) C. B. Wolf
        Not in North America north of Mexico
      SY= Rhamnus insula Kellogg
      SY= Rhamnus insularis Greene
  ROSACEAE
    Alchemilla lapeyrousii Buser
        Not in North America north of Mexico
    Cotoneaster microphyllus Wallich ex Lindl.
    Crataegus bullatus Boiss.
        Not in North America north of Mexico
    Malus ×micromalus Makino
      SY= Pyrus ×micromalus (Makino) Bailey
    Potentilla supina L.
    Rosa ×anemonoides Rehd. (pro sp.) [laevigata × odorata]
        Not in North America north of Mexico
    Rosa missouriensis hort. ex Steud.
        Not in North America north of Mexico
    Rubus amplificatus (Bab.) E. Less
        Not in North America north of Mexico
    Rubus ellipticus Sm. var. ellipticus
        Not in North America north of Mexico
    Rubus fruticosus L.
    Rubus moluccanus L.
    Rubus tomentosus Borkh. var. tomentosus
        Not in North America north of Mexico
    Rubus ulmifolius Schott var. ulmifolius
    Sorbus domestica L.
    Spiraeanthus cordifolia Kunth
  RUBIACEAE
    Exostema sanctae-luciae (Kentish) Britt.
        Not in North America north of Mexico
    Hedyotis rigida Fosberg
    Hedyotis rigida Fosberg var. rigida
    Hedyotis rigida Fosberg var. tenuifolia Fosberg
    Hydrophylax maritima L. f.
    Ixora grandiflora Zoll. & Moritzi
        Not in North America north of Mexico
    Mitracarpus frigidus (Willd. ex Roemer & J.A. Schultes) K. Schum.
        Not in North America north of Mexico
    Oldenlandia biflora L.
      SY= Hedyotis biflora (L.) Lam.
    Oldenlandia herbacea (L.) Roxb.
      SY= Hedyotis herbacea L.
    Psychotria insularum Gray
        Not in North America north of Mexico
      SY= Psychotria insularum Gray var. paradisi Fosberg
    Psychotria nervosa Sw. var. rufescens (Kunth) Steyermark
        Not in North America north of Mexico
    Spermacoce alata Aubl.
      SY= Borreria alata (Aubl.) DC.
    Spermacoce tenella Kunth
        Not in North America north of Mexico
      SY= Borreria capitata (Ruiz & Pavón) DC. var. tenella (Kunth) Steyermark
      SY= Borreria tenella (Kunth) Cham. & Schlecht.
  RUTACEAE
    Phellodendron sachalinense (F. Schmidt) Sarg.
        Not in North America north of Mexico
  SALICACEAE
    Populus simonii Carr.
    Salix ×hankensonii Dode
    Salix myrsinifolia Salisb.
    Salix ×pilosiuscula (Schneid.) Boivin
  SAPINDACEAE
    Filicium decipens (Wight & Arn.) Thwaites
        Not in North America north of Mexico
    Litchi chinensis Sonn.
        Not in North America north of Mexico
    Matayba apetala (Macfad.) Radlk.
      SY= Matayba oppositifolia (A. Rich.) Britt.
    Paullinia plumieri Triana & Planch.
        Not in North America north of Mexico
    Talisia pedicellaris Radlk.
        Not in North America north of Mexico
  SARRACENIACEAE
    Sarracenia ×courtii Masters
    Sarracenia ×excellens Nichols. (pro sp.)
  SAXIFRAGACEAE
    Saxifraga calycina Sternb.
        Not in North America north of Mexico
    Saxifraga calycina Sternb. ssp. calycina
        Not in North America north of Mexico
    Saxifraga flagellaris Willd. ssp. flagellaris
    Saxifraga ×geum L. (pro sp.)
        Not in North America north of Mexico
      SY= Micranthes geum (L.) Small
    Saxifraga hirsuta L.
        Not in North America north of Mexico
  SCROPHULARIACEAE
    Calceolaria chelidonioides Kunth
    Calceolaria tripartita Ruiz & Pavón
      SY= Calceolaria scabiosifolia Roemer & J.A. Schultes
    Castilleja pallida (L.) Spreng.
        Not in North America north of Mexico
    Collinsia parvula Rydb.
    Euphrasia bottnica Kihlm.
        Not in North America north of Mexico
    Euphrasia ostenfeldii (Pugsley) Yeo
    Lindernia brucei Howard
        Not in North America north of Mexico
    Mimulus ×bartonianus Rivoire
    Verbascum pulverulentum Vill.
    Veronica opaca Fries
  SOLANACEAE
    Capsicum chinense Jacq.
        Not in North America north of Mexico
    Cestrum daphnoides Griseb.
        Not in North America north of Mexico
    Lycium tweedianum Griseb. var. tweedianum
    Nicotiana acuminata (Graham) Hook. var. acuminata
    Nicotiana quadrivalvis Pursh var. multivalvis (Lindl.) Mansf.
      SY= Nicotiana bigelovii (Torr.) S. Wats. var. multivalvis (Lindl.) Eastw.
    Physalis subulata Rydb, var. subulata
    Solandra longiflora Tuss.
        Not in North America north of Mexico
      SY= Swartzia longiflora (Tuss.) Britt. & Wilson
    Solanum furcatum Dunal ex Poir.
        Not in North America north of Mexico
    Solanum pterocaulon Dunal
        Not in North America north of Mexico
  STERCULIACEAE
    Dombeya burgessiae Gerrard ex Harvey & Sonder
        Not in North America north of Mexico
    Dombeya wallichii (Lindl.) Benth. & Hook. ex K. Schum.
        Not in North America north of Mexico
  THYMELAEACEAE
    Daphne cneorum L.
        Not in North America north of Mexico
  TILIACEAE
    Tilia tomentosa Moench
        Not in North America north of Mexico
      SY= Tilia argentea DC.
    Triumfetta velutina Vahl
        Not in North America north of Mexico
  TURNERACEAE
    Turnera angustifolia P. Mill.
        Not in North America north of Mexico
    Turnera scabra Millsp.
        Not in North America north of Mexico
      SY= Turnera ulmifolia L. var. intermedia Urban
  ULMACEAE
    Celtis tala Gillies
        Not in North America north of Mexico
    Trema cannabinum Lour.
    Trema zeylanica (L.) J. Bennett
        Not in North America north of Mexico
    Ulmus davidiana Planch. var. japonica (Rehd.) Nakai
        Not in North America north of Mexico
      SY= Ulmus japonica (Rehd.) Sarg.
  URTICACEAE
    Laportea cuneata (A. Rich.) Chew
        Not in North America north of Mexico
    Pilea grandifolia (L.) Blume
        Not in North America north of Mexico
  VALERIANACEAE
    Valeriana scandens L. var. candolleana (Gard.) C.A. Muell.
  VERBENACEAE
    Clerodendron japonicum (Thunb.) Sweet var. pleniflorum (Schauer) Maheshwari
        Not in North America north of Mexico
    Duranta fletcheriana Moldenke
        Not in North America north of Mexico
    Priva mexicana (L.) Pers.
        Not in North America north of Mexico
    Stachytarpheta speciosa Pohl ex Schauer
        Not in North America north of Mexico
  VIOLACEAE
    Viola canina ssp. canina
        Not in North America north of Mexico
  VISCACEAE
    Phoradendron mucronatum (DC.) Krug & Urban
        Not in North America north of Mexico
      SY= Viscum mucronatum DC.
  VITACEAE
    Ampelopsis mexicana Rose
        Not in North America north of Mexico
    Vitis ×bourquina Munson ex Viala (pro sp.)
        Not in North America north of Mexico
    Vitis ×labruscana Bailey
        Not in North America north of Mexico
  ZINGIBERACEAE
    Kaempferia rotunda L.
        Not in North America north of Mexico
  ZYGOPHYLLACEAE
    Fagonia californica Benth.
        Not in North America north of Mexico
    Guajacum unijugum Brandeg.
        Not in North America north of Mexico
«Contents»

LANTS -The list of Nomina Anomala (anomalous names)Nomina Anomala

The list of anomalous vascular plant names in the PLANTS U.S. checklist. Includes unpublished names, unnamed or improperly named hybrids, and otherwise invalid names.

LYCOPODIOPHYTA (Club-mosses and allies)
  LYCOPODIACEAE
    Lycopodium cernuum L. var. crassifolium Spring
        (application of name uncertain regarding North American plants)
PTERIDOPHYTA (Ferns)
  ASPLENIACEAE
    Phyllitis scolopendrium (L.) Newman var. emarginata Fern. ex Boivin
        (nomen nudum)
  BLECHNACEAE
    Blechnum orientale L.
        (nomen nudum, possibly intended for B. occidentale L.)
  CYATHEACEAE
    Cyathea wilsonii (Hook.) Proctor
        (Cnemidaria horrida × Cyathea arborea - an unnamed intergeneric hybrid, thus not referable to either genus)
      SY= Hemitelia wilsonii Hook.
  GLEICHENIACEAE
    Dicranopteris sandwicensis O. Deg.
        (application of name uncertain regarding North American plants)
  PTERIDACEAE
    Doryopteris tryonii O.& I. Deg.
        (application of name uncertain regarding North American plants)
    Pellaea ×wagneri Windham
        (nomen nudum)
CONIFEROPHYTA (Conifers)
  PINACEAE
    Pinus ×rigitaeda auct.
        (nomen invalidum)
MAGNOLIOPHYTA (Flowering plants)
  ACANTHACEAE
    Adhatoda dulcis Cav.
        (nomen nudum)
    Barleria nitida Jacq.
        (nomen nudum)
    Justicia longii R. Hilsenbeck
        (nomen nudum)
    Justicia parviflora (Buckl.) Lindau, non Retz.
        (nomen nudum)
    Justicia pilosella (Nées) R. Hilsenbeck
        (nomen nudum)
    Justicia turneri R. Hilsenbeck
        (nomen nudum)
  AGAVACEAE
    Yucca glauca Nutt. var. mollis Engelm.
        (nomen nudum)
  AMARANTHACEAE
    Alternanthera palmeri S. Wats.
        (nomen nudum)
  APIACEAE
    Cymopterus packardiae Cronq.
        (nomen nudum)
  ASTERACEAE
    Achillea millefolium L. ssp. megacephala (Raup) auct.
        (nomen nudum)
    Argyroxiphium virescens Hbd. var. paludosa St. John
        (an unnamed natural hybrid of A. grayanum × A. virescens)
    Aster ×tardiflorus L.
        (an interspecific hybrid of A. cordifolius × A. puniceus)
      SY= Aster novi-belgii L. ssp. tardiflorus (L.) A.G. Jones
      SY= Aster novi-belgii L. var. tardiflorus (L.) A.G. Jones
      SY= Symphyotrichum novi-belgii (L.) Nesom var. tardiflorum (L.) Nesom
    Dubautia ciliolata (DC.) Keck var. laxiflora (DC.) Keck
        (an unnamed hybrid of D. ciliolata × D. scabra)
      SY= Railliardia ciliolata DC. var. laxiflora (DC.) Sherff
    Dubautia demissifolia (Sherff) Keck var. verticillata (Sherff) Keck
        (an unnamed hybrid of D. menziesii × D. scabra)
      SY= Railliardia demissifolia Sherff var. verticillata Sherff
    Dubautia laxa Hook. & Arn. var. blakei O. Deg. & Sherff
        (an unnamed hybrid of D. laxa × D. scabra)
    Dubautia microcephala Skottsberg var. forbesii Sherff
        (an unnamed hybrid of D. microcephala × D. plantaginea)
    Dubautia waialealae Rock var. megaphylla Sherff
        (an unnamed hybrid of D. imbricata × D. waialealae)
    Erigeron purpuratus Greene ssp. pallens (Cronq.) G.W. Douglas
        (nomen nudum, a nomenclatural synonym of Erigeron pallens Cronq.)
    Haplopappus lanulosus (Greene) M.E. Peck
        (nomen nudum)
    Leptilon floribundum Kunth
        (nomen nudum)
    Oonopsis puebloensis
        (nomen nudum)
    Pentachaeta exigua (Gray) Tomb
        (typographic error, intended for Prenanthella exigua (Gray) Rydb.)
    Prenanthes alba L. ssp. pallida Milstead
        (nomen invalidum)
    Senecio bartianus Heller
        (typographic error, intended for S. hartianus Heller)
    Silphium integrifolium Michx. var. asperrimum (Hook.) B.L. Turner
        (nomen nudum)
  BEGONIACEAE
    Begonia ×tuberhybrida Voss
        (nomen nudum)
      SY= Begonia ×tuberosa hort.
  BRASSICACEAE
    Arabis bolanderi S. Wats.
        (application of name uncertain regarding North American plants)
    Draba incisa auct.
        (nomen nudum)
    Matthiola longipetala (Vent.) DC. var. sterilis (Airy-Shaw) Boivin
        (nomen nudum)
    Sisymbrium richardsonii Sweet
        (nomen nudum)
    Streptanthus shastensis Price, D. Taylor, & Buck
        (nomen nudum)
  CACTACEAE
    Mammillaria scolymoides Scheidw.
        (nomen nudum, a nomenclatural synonym of Coryphantha scolymoides (Scheidw.) Berger)
  CAPPARACEAE
    Cleome tenuifolia Le Conte ex Torr. & Gray
        (nomen nudum)
  CARYOPHYLLACEAE
    Silene involucrata (Cham. & Schlecht.) Bocquet var. apetala Farw.
        (published as a forma)
  CELASTRACEAE
    Mortonia sempervirens Gray ssp. scabrella (Gray) Prigge
        (nomen nudum)
  CONVOLVULACEAE
    Ipomoea sectifolia Shinners
        (nomen nudum)
    Ipomoea vulgaris Choisy
        (nomen invalidum, possibly intended for Quamoclit vulgaris Choisy)
    Jacquemontia tridentata (L.) Hallier f.
        (nomen nudum)
  CUCURBITACEAE
    Psiguria cookiana auct.
        (nomen nudum)
  CYPERACEAE
    Carex demareei Palmer
        (nomen nudem)
    Carex viridior Mackenzie
        (a name applied to a mixture of C. atrata L. and C. atrosquama Mackenzie)
    Cyperus ×weatherbianus Fern.
        (an intergeneric hybrid between Dulichium arundinaceum × Rhynchospora capitellata, thus not referable to either genus)
    Eleocharis baldwiniana (J.A. Schultes) Torr.
        (nomen nudum, probably intended for Fimbristylis baldwiniana (J.A. Schultes) Torr.)
    Scirpus microcarpus J.& K. Presl var. bissellii (Fern.) House
        (apparently an unnamed hybrid between S. expansus and S. microcarpus)
      SY= Scirpus sylvaticus L. var. bissellii Fern.
  EUPHORBIACEAE
    Euphorbia austrina auct.
        (nomen nudum)
  FABACEAE
    Astragalus molybdenus Barneby var. shultziorum (Barneby) R.W. Scott
        (nomen invalidum)
    Crotalaria palmensis (Christ) Hutchinson
        (nomen nudum)
    Dalea albiflora Gray ssp. villosa (Rydb.) Wiggins
        (nomen nudum, possibly intended for Thornbera albiflora (Gray) Rydb. ssp. villosa (Rydb.) Wiggins)
    Dalea pedunculata Pursh
        (nomen nudum)
    Lupinus lasalensis D.Dunn
        (nomen nudum)
    Psoralea glandulosa L. var. torreyana (L. Benson) I.M. Johnston
        (disposition of name uncertain)
  HYDROPHYLLACEAE
    Phacelia dasyphylla Greene ex Baker
        (nomen nudum)
    Phacelia dasyphylla Greene ex Brand
        (nomen nudum)
  IRIDACEAE
    Xiphion xiphium L.
        (nomen nudum)
  LAMIACEAE
    Agastache neomexicana (Briq.) Standl. ssp. havardii (Gray) Lint
        (nomen nudum)
  LILIACEAE
    Lilium jacintense (Munz) Mingrone & Ownbey
        (nomen nudum)
    Nothoscordum striatum Kunth
        (application of name uncertain regarding North American plants)
    Trillium cernuum L. var. tangerae Wherry
        (nomen nudum)
    Trillium recurvatum Beck var. lanceolatum S. Wats.
        (nomen nudum)
  LOASACEAE
    Mentzelia multiflora (Nutt.) Nutt. ex Gray ssp. leucopetala Thompson & Zavortink
        (nomen invalidum)
    Mentzelia paradoxica Thompson & Zavortink
        (nomen invalidum)
    Mentzelia sanjuanensis Thompson & Zavortink
        (nomen invalidum)
  MELASTOMATACEAE
    Acisanthera erecta St.-Hil.
        (nomen nudum)
    Clidemia polystachya (Naud.) Cogn.
        (later homonym, taxonomic disposition uncertain)
  MYRTACEAE
    Metrosideros collina (J.R. & G. Forst.) Gray var. nuda Skottsberg
        (nomen nudum)
  ONAGRACEAE
    Gaura ludoviciana Raven & Gregory
        (nomen nudum)
  ORCHIDACEAE
    Calopogon pulchellus R. Br. ex Ait. f. var. simpsonii (Chapman) Ames
        (nomen nudum, a taxonomic synonym of Calopogon tuberosus var. simpsonii (Chapman) Magrath)
    Cypripedium daultonii Soukup
        (nomen nudum, taxonomic synonym of C. kentuckense C.F. Reed)
    Habenaria dilatata (Pursh) Hook. var. laxiflora (Rydb.) Correll
        (nomen nudum)
  POACEAE
    ×Agroelymus bergrothii Rouss.
        (a putative intergeneric hybrid of Elytrigia repens × Leymus mollis, thus inappropriate as ×Agroelymus)
    ×Agroelymus bowdenii Boivin
        (a putative intergeneric hybrid of Pascopyrum smithii × Leymus innovatus, thus inappropriate as ×Agroelymus)
    ×Agroelymus hultenii Melderis
        (a putative intergeneric hybrid of Elymus alaskanus × Leymus mollis, thus inappropriate as ×Agroelymus)
    ×Agrohordeum jordalii Melderis
        (a putative intergeneric hybrid of Elymus macrourus × Hordeum brachyanthemum, thus inappropriate as ×Agrohordeum)
    ×Agrohordeum langei (Krichter) Camus
        (a putative intergeneric hybrid of Elytrigia repens × Hordeum marinum, thus inappropriate as ×Agrohordeum)
    SY= ×Hordeopyrum rouxii (Gren. & Duval) Simonet
    Agropyron ×bowdenii Boivin
        (a putative integeneric hybrid of Elymus trachycaulus × Pseudoroegneria spicata, thus inappropriate as an Agropyron)
    Agropyron glaucum (Desf. ex DC.) Roemer & J.A. Schultes
        (an unnamed hybrid of Elytrigia intermedia × E. pycnanthes)
    ×Elyhordeum berkeleyana (Bowden) Bowden
        (a putative intergeneric hybrid of Hordeum jubatum × Leymus condensatus, thus inappropriate as ×Elyhordeum)
      SY= ×Elymordeum berkeleyana Bowden
    ×Elyhordeum triploideum (Bowden) Bowden
        (a putative intergeneric hybrid of Hordeum vulgare × Leymus racemosus, thus inappropriate as ×Elyhordeum)
    ×Elytesion californicum (Bowden) Barkworth & Dewey
        (a putative intergeneric hybrid of Elymus elymoides or E. multisetus × Hordeum jubatum, thus inappropriate as ×Elytesion)
      SY= Sitordeum californicum Bowden
    ×Elytesion pilosilemma (Mitchell & Hodgson) Barkworth & Dewey
        (a putative intergeneric hybrid of Elymus macrourus × Hordeum jubatum, thus inappropriate as ×Elytesion)
      SY= ×Agrohordeum pilosilemma Mitchell & Hodgson
    Muhlenbergia pilosa auct.
        (nomen nudum)
    Polytrias racemosa (Nees) Hack.
        (nomen nudum, probably intended for Polytrias praemorsa (Nees) Hack.)
    ×Sitordeum californicum Bowden
        (a putative intergeneric hybrid of Elymus elymoides or Elymus multisetus × Hordeum jubatum, thus inappropriate as ×Sitordeum)
    Sporobolus microspermum (Lag.) A.S. Hitchc.
        (a name applied to a cluster of species within the genus)
    Trisetum laxum Nash
        (nomen nudum, intended for Tripsaxum laxum)
  POLEMONIACEAE
    Gilia nubigena W.A. Anderson
        (nomen nudum)
  POLYGONACEAE
    Eriogonum hirsutum Nutt.
        (nomen nudum)
    Polygonum otophyllum Fedde
        (application of name uncertain regarding North American plants)
  PORTULACACEAE
    Claytonia spathulata Dougl. ex Hook.
        (nomen illeg)
      SY= Montia spathulata (Dougl. ex Hook.) T.J. Howell
    Lewisia cotyledon (S. Wats.) B.L. Robins. var. fimbriata Hohn
        (nomen nudum)
  PRIMULACEAE
    Primula wilcoxiana auct.
        (nomen nudum)
  RANUNCULACEAE
    Anemone multifida Poir. ssp. globosa (Nutt. ex Torr. & Gray) Nutt. ex Torr. & Gray
        (nomen nudum)
  ROSACEAE
    Crataegus acutiserrata Kruschke
        (nomen invalidum, taxonomic disposition uncertain)
    Crataegus shinnersii Kruschke
        (nomen invalidum, taxonomic disposition uncertain)
    Crataegus wisconsinensis Kruschke
        (nomen invalidum, taxonomic disposition uncertain)
    Prunus injuncta Small
        (typographic error, intended for P. injucunda Small)
    Prunus umbellata Ell. var. injuncta (Small) Sarg.
        (typographic error, intended for Prunus umbellata Ell. var. injucunda (Small) Sarg.)
    Rubus ferrofluvius Fuller & Davis
        (nomen invalidum, type not designated)
    ×Sorbaronia alpina (Willd.) Schneid.
        (an intergeneric hybrid between Aronia arbutifolia × Sorbus aria, thus not referable to either genus)
      SY= Pyrus ×alpina Willd.
      SY= Sorbus ×alpina (Willd.) Heynh.
    ×Sorbaronia arsenii (Britt. ex Arsene) G.N. Jones
        (an intergeneric hybrid between Aronia arbutifolia × Sorbus decora, thus not referable to either genus)
    ×Sorbaronia fallax (Schneid.) Schneid.
        (an intergeneric hybrid between Aronia melanocarpa × Sorbus aucuparia, thus not referable to either genus)
      SY= Pyrus ×fallax (Schneid.) Fern.
    ×Sorbaronia hybrida (Moench) Schneid.
        (an intergeneric hybrid between Aronia arbutifolia × Sorbus aucuparia, thus not referable to either genus)
      SY= Pyrus hybrida Moench
    ×Sorbaronia jackii Rehd.
        (an intergeneric hybrid between Aronia prunifolia × Sorbus americana, thus not referable to either genus)
      SY= Pyrus ×jackii (Rehd.) Fern.
    ×Sorbaronia sorbifolia (Poir.) Schneid.
        (an intergeneric hybrid between Aronia melanocarpa × Sorbus americana, thus not referable to either genus)
      SY= Pyrus mixta Fern.
      SY= Sorbus sargentii Dippel
      SY= Sorbus sorbifolia (Poir.) Hedl.
  RUBIACEAE
    Sherardia orientalis Boiss. & Hohen.
        (nomen nudum, intended for Asperula orientalis Boiss. & Hohen.)
    Spermacoce brachysepala (Urban) Alain
        (nomen nudum)
  SALICACEAE
    Salix ×clarkei Bebb
        (nomen invalidum)
    Salix cordata Muhl. var. acutidens (Pursh) Anderss.
        (nomen nudum)
    Salix ×pilosiuscula (Schneid.) Boivin
        (application of name uncertain regarding North American plants)
    Salix pellita (Anderss.) Anderss. ex Schneid. var. psila Schneid.
        (nomen nudum, epithet published as a forma)
    Salix sitchensis Sanson ex Bong. var. coulteri (Anderss.) Jepson
        (nomen nudum, epithet published as a forma)
    Salix subvillosa Ell.
        (nomen nudum)
  SAPOTACEAE
    Achras bidentata A. DC.
        (nomen nudum)
  SCROPHULARIACEAE
    Agalinis erecta (Walt.) Pennell
        (nomen invalidum)
      SY= Gerardia erecta Walt.
    Aureolaria villosa (L.) Pennell
        (nomen nudum)
    Castilleja nervosa A. Nels.
        (application of name uncertain regarding North American plants)
    Cordylanthus eremicus (Coville & Morton) Munz ssp. bernardinus auct.
        (nomen nudum)
    Dasistoma pectinata (Nutt.) Benth.
        (nomen nudum)
    Penstemon canescens (Britt.) Britt. ssp. brevisepalus Crosswhite
        (nomen nudum)
  VALERIANACEAE
    Valeriana obovata (Nutt.) Roemer & J.A. Schultes
        (description not applicable to Valeriana, type not extant)
  VERBENACEAE
    Stachytarpheta cayennensis (L.C. Rich.) Vahl var. albiflora Moldenke
        (nomen nudum)
    Verbena ×perplexa Moldenke
        (a putative hybrid of Glandularia goodingii × Glandula bipinnatifida thus inappropriate as a Verbena)
  XYRIDACEAE
    Xyris obscura Kral
        (nomen nudum)
«Contents»

Intellectual Property StatementIntellectual Property Statement / How to Cite the PLANTS Database
DisclaimersDisclaimers
USDA Non-discrimination PolicyUSDA non-discrimination policy