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Nyctaginaceae Malvaceae Euphorbiaceae Aceraceae Asteraceae Poaceae Ranunculaceae Acoraceae Pteridaceae Adoxaceae Scrophulariaceae Lamiaceae Rosaceae Caryophyllaceae Alismataceae Liliaceae Brassicaceae Amaranthaceae Lythraceae Apiaceae Fabaceae Primulaceae Boraginaceae Apocynaceae Araliaceae Ericaceae Papaveraceae Araceae Aristolochiaceae Asclepiadaceae Aspleniaceae Dryopteridaceae Chenopodiaceae Azollaceae Iridaceae Berberidaceae Elatinaceae Betulaceae Urticaceae Ophioglossaceae Cabombaceae Butomaceae Callitrichaceae Onagraceae Orchidaceae Convolvulaceae Campanulaceae Bignoniaceae Cannabaceae Cyperaceae Rhamnaceae Celastraceae Ulmaceae Gentianaceae Ceratophyllaceae Pyrolaceae Portulacaceae Capparaceae Polemoniaceae Santalaceae Commelinaceae Cornaceae Fumariaceae Cuscutaceae Solanaceae Dipsacaceae Cactaceae Cucurbitaceae Elaeagnaceae Hydrophyllaceae Hydrocharitaceae Equisetaceae Polygonaceae Geraniaceae Oleaceae Rubiaceae Verbenaceae Cistaceae Pontederiaceae Saxifragaceae Hippuridaceae Clusiaceae Balsaminaceae Isoetaceae Juglandaceae Juncaceae Cupressaceae Lemnaceae Caprifoliaceae Linaceae Lycopodiaceae Moraceae Marsileaceae Menispermaceae Loasaceae Menyanthaceae Molluginaceae Haloragaceae Najadaceae Nymphaeaceae Orobanchaceae Oxalidaceae Vitaceae Crassulaceae Pinaceae Plantaginaceae Polygalaceae Polypodiaceae Salicaceae Potamogetonaceae Pedaliaceae Dennstaedtiaceae Monotropaceae Fagaceae Anacardiaceae Grossulariaceae Ruppiaceae Selaginellaceae Smilacaceae Sparganiaceae Tamaricaceae Thelypteridaceae Tiliaceae Zygophyllaceae Juncaginaceae Typhaceae Lentibulariaceae Valerianaceae Violaceae Agavaceae Zannichelliaceae Rutaceae
Abronia Abutilon Acalypha Acer Achillea Achnatherum Aconitum Acorus Acroptilon Actaea Adenocaulon Adiantum Adoxa Aegilops Agalinis Agastache Ageratina Agoseris Agrimonia Agropyron Agrostemma Agrostis Alcea Alisma Allium Almutaster Alopecurus Alyssum Amaranthus Ambrosia Amelanchier Ammannia Ammi Amorpha Amphicarpaea Anagallis Anaphalis Anchusa Andropogon Androsace Anemone Anethum Antennaria Anthemis Apios Apium Apocynum Aquilegia Arabidopsis Arabis Aralia Arctium Arctostaphylos Arenaria Argemone Argentina Arisaema Aristida Armoracia Arnica Arnoglossum Arrhenatherum Artemisia Asarum Asclepias Asparagus Asperugo Asplenium Astragalus Athyrium Atriplex Avena Avenula Azolla Bacopa Balsamorhiza Baptisia Barbarea Bassia Beckmannia Belamcanda Berberis Bergia Berteroa Berula Besseya Betula Bidens Boehmeria Boltonia Botrychium Bouteloua Brasenia Brassica Brickellia Bromus Buglossoides Bupleurum Butomus Calamagrostis Calamovilfa Callirhoe Callitriche Calochortus Caltha Calylophus Calypso Calystegia Camelina Campanula Campanulastrum Campsis Cannabis Capsella Caragana Cardamine Cardaria Carduus Carex Carum Castilleja Catabrosa Catalpa Catapodium Caulophyllum Ceanothus Celastrus Celtis Cenchrus Centaurea Centaurium Cerastium Ceratocephala Ceratophyllum Cercocarpus Chaenactis Chaiturus Chamaecrista Chamaerhodos Chamaesyce Chamerion Cheilanthes Chenopodium Chimaphila Chloris Chorispora Cichorium Cicuta Cinna Circaea Cirsium Clarkia Claytonia Clematis Cleome Collinsia Collomia Comandra Commelina Conium Conringia Consolida Convolvulus Conyza Corallorhiza Coreopsis Coriandrum Corispermum Cornus Corydalis Corylus Crataegus Crepis Crotalaria Croton Cryptantha Cryptogramma Cryptotaenia Cuscuta Cyclachaena Cycloloma Cymbalaria Cymopterus Cynoglossum Cyperus Cypripedium Cystopteris Dactylis Dactylorhiza Dalea Danthonia Dasiphora Datura Daucus Delphinium Deschampsia Descurainia Desmanthus Desmodium Dianthus Diarrhena Dicentra Dichanthelium Digitaria Diplotaxis Dipsacus Distichlis Dodecatheon Doellingeria Draba Dracocephalum Dryopteris Dyssodia Echinacea Echinocereus Echinochloa Echinocystis Echinodorus Echium Eclipta Elaeagnus Elatine Eleocharis Eleusine Ellisia Elodea Elyhordeum Elymus Endolepis Enemion Engelmannia Epilobium Epipactis Equisetum Eragrostis Erechtites Ericameria Erigeron Eriodictyon Eriogonum Eriophorum Erodium Erucastrum Eryngium Erysimum Erythronium Escobaria Euonymus Eupatoriadelphus Eupatorium Euphorbia Eurybia Eustoma Euthamia Evax Evolvulus Fagopyrum Falcaria Festuca Fimbristylis Fragaria Frasera Fraxinus Fritillaria Froelichia Fumaria Gaillardia Galeopsis Galinsoga Galium Gaura Gayophytum Gentiana Gentianella Gentianopsis Geranium Geum Glandularia Glechoma Gleditsia Glyceria Glycyrrhiza Gnaphalium Goodyera Gratiola Grindelia Gutierrezia Gymnocarpium Gymnocladus Gypsophila Hackelia Halenia Halogeton Hedeoma Hedysarum Helenium Helianthella Helianthemum Helianthus Heliopsis Heliotropium Hemerocallis Heracleum Hesperis Hesperostipa Heteranthera Heterotheca Heuchera Hibiscus Hieracium Hierochloe Hippuris Holosteum Hordeum Houstonia Humulus Hydrophyllum Hymenopappus Hyoscyamus Hypericum Hypoxis Impatiens Ipomoea Ipomopsis Iris Isoetes Iva Juglans Juncus Juniperus Knautia Koeleria Krascheninnikovia Lactuca Lamium Laportea Lappula Lathyrus Lechea Ledum Leersia Lemna Leonurus Lepidium Leptochloa Leptosiphon Lespedeza Lesquerella Leucanthemum Leucocrinum Leucophysalis Leucopoa Lewisia Leymus Liatris Lilium Limosella Linaria Lindernia Linnaea Linum Lipocarpha Listera Lithophragma Lithospermum Lobelia Logfia Lolium Lomatium Lonicera Lotus Lupinus Luzula Lycium Lycopodium Lycopus Lygodesmia Lysimachia Lythrum Machaeranthera Maclura Madia Mahonia Maianthemum Malus Malva Marrubium Marsilea Matricaria Matteuccia Medicago Melica Melilotus Menispermum Mentha Mentzelia Menyanthes Mertensia Microseris Microsteris Milium Mimosa Mimulus Minuartia Mirabilis Mitella Moehringia Mollugo Monarda Moneses Monolepis Monroa Morus Muhlenbergia Musineon Myosotis Myosurus Myriophyllum Najas Nassella Nasturtium Navarretia Neeragrostis Nepeta Neslia Nothocalais Nuphar Nuttallanthus Nymphaea Oenothera Oligoneuron Onobrychis Onoclea Onosmodium Oonopsis Ophioglossum Opuntia Ornithogalum Orobanche Orthilia Orthocarpus Oryzopsis Osmorhiza Ostrya Oxalis Oxyria Oxytropis Packera Panax Panicum Parietaria Parnassia Paronychia Parthenocissus Pascopyrum Paspalum Pastinaca Pedicularis Pediocactus Pediomelum Pellaea Pennisetum Penstemon Penthorum Perideridia Petasites Petrophytum Petrorhagia Phacelia Phalaris Phemeranthus Phleum Phlox Phragmites Phryma Phyla Physalis Physaria Physocarpus Physostegia Picea Picradeniopsis Pilea Pinus Piperia Piptatherum Plagiobothrys Plantago Platanthera Poa Polanisia Polemonium Polygala Polygonatum Polygonum Polypodium Polypogon Polystichum Populus Portulaca Potamogeton Potentilla Prenanthes Proboscidea Prosartes Prunella Prunus Psathyrostachys Pseudelymus Pseudognaphalium Pseudoroegneria Psoralidium Pteridium Pterospora Ptilimnium Puccinellia Pulsatilla Pycnanthemum Pyrola Quercus Ranunculus Ratibida Redfieldia Rhamnus Rhus Rhynchospora Ribes Robinia Rorippa Rosa Rotala Rubus Rudbeckia Rumex Ruppia Sagina Sagittaria Salicornia Salix Salsola Salvia Sambucus Sanguinaria Sanicula Saponaria Sarcobatus Saxifraga Scandix Schedonnardus Schedonorus Schizachne Schizachyrium Schoenoplectus Scirpus Scolochloa Scrophularia Scutellaria Secale Securigera Sedum Selaginella Senecio Setaria Shepherdia Shinnersoseris Sicyos Sideritis Silene Silphium Sinapis Sisymbrium Sisyrinchium Sium Smilax Solanum Solidago Sonchus Sophora Sorbus Sorghastrum Sorghum Sparganium Spartina Spergula Sphaeralcea Sphenopholis Spiraea Spiranthes Spirodela Sporobolus Stachys Stanleya Stellaria Stenosiphon Stenotus Streptopus Strophostyles Stuckenia Suaeda Symphoricarpos Symphyotrichum Syringa Taenidia Tamarix Tanacetum Taraxacum Telesonix Tetraneuris Teucrium Thalictrum Thelesperma Thelypodium Thelypteris Thermopsis Thinopyrum Thlaspi Tidestromia Tilia Torreyochloa Townsendia Toxicodendron Tradescantia Tragopogon Tribulus Trichostema Trifolium Triglochin Trillium Triodanis Triplasis Tripleurospermum Tripterocalyx Trisetum Triticum Typha Ulmus Urtica Utricularia Uvularia Vaccaria Vaccinium Valeriana Vallisneria Verbascum Verbena Verbesina Vernonia Veronica Veronicastrum Viburnum Vicia Viola Vitis Vulpia Wolffia Woodsia Xanthium Xylorhiza Yucca Zannichellia Zanthoxylum Zigadenus Zizania Zizia