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Pinaceae Malvaceae Aceraceae Asteraceae Poaceae Ranunculaceae Acoraceae Pteridaceae Adoxaceae Lamiaceae Rosaceae Alismataceae Liliaceae Betulaceae Brassicaceae Amaranthaceae Orchidaceae Boraginaceae Primulaceae Ericaceae Apiaceae Apocynaceae Araliaceae Viscaceae Caryophyllaceae Asclepiadaceae Rubiaceae Aspleniaceae Fabaceae Dryopteridaceae Chenopodiaceae Scrophulariaceae Cyperaceae Orobanchaceae Ophioglossaceae Cabombaceae Butomaceae Araceae Callitrichaceae Onagraceae Convolvulaceae Campanulaceae Rhamnaceae Ceratophyllaceae Euphorbiaceae Pyrolaceae Saxifragaceae Portulacaceae Capparaceae Polemoniaceae Santalaceae Cornaceae Fumariaceae Cuscutaceae Solanaceae Droseraceae Cucurbitaceae Elaeagnaceae Elatinaceae Hydrophyllaceae Hydrocharitaceae Empetraceae Equisetaceae Polygonaceae Geraniaceae Papaveraceae Cactaceae Oleaceae Gentianaceae Hippuridaceae Cistaceae Cannabaceae Lycopodiaceae Clusiaceae Balsaminaceae Iridaceae Isoetaceae Juncaceae Cupressaceae Dipsacaceae Lemnaceae Juncaginaceae Caprifoliaceae Linaceae Lythraceae Berberidaceae Marsileaceae Loasaceae Menyanthaceae Nyctaginaceae Monotropaceae Myricaceae Haloragaceae Najadaceae Nymphaeaceae Oxalidaceae Urticaceae Celastraceae Thelypteridaceae Hydrangeaceae Lentibulariaceae Plantaginaceae Polygalaceae Polypodiaceae Salicaceae Potamogetonaceae Dennstaedtiaceae Fagaceae Crassulaceae Anacardiaceae Grossulariaceae Ruppiaceae Rutaceae Sarraceniaceae Scheuchzeriaceae Selaginellaceae Sparganiaceae Taxaceae Commelinaceae Typhaceae Valerianaceae Verbenaceae Violaceae Agavaceae Zannichelliaceae
Abies Abutilon Acer Achillea Achnatherum Achnella Aconitum Acorus Acroptilon Actaea Adenocaulon Adiantum Adoxa Agastache Agoseris Agrimonia Agroelymus Agropyron Agrostis Alisma Allium Almutaster Alnus Alopecurus Alyssum Amaranthus Ambrosia Amelanchier Amerorchis Amsinckia Anagallis Anaphalis Anchusa Andromeda Androsace Anemone Anethum Angelica Antennaria Anthemis Anthoxanthum Apocynum Aquilegia Arabis Aralia Arceuthobium Arctagrostis Arctium Arctostaphylos Arenaria Argentina Aristida Armoracia Arnica Artemisia Aruncus Asclepias Asparagus Asperugo Asperula Asplenium Aster Astragalus Athyrium Atriplex Avena Avenula Axyris Bacopa Balsamorhiza Barbarea Bassia Beckmannia Berteroa Besseya Betula Bidens Blysmus Borago Boschniakia Botrychium Bouteloua Brasenia Brassica Braya Brickellia Briza Bromus Bupleurum Butomus Calamagrostis Calamovilfa Calla Callitriche Calochortus Caltha Calylophus Calypso Calystegia Camassia Camelina Camissonia Campanula Canadanthus Capsella Caragana Cardamine Cardaria Carduus Carex Carthamus Carum Cassiope Castilleja Catabrosa Ceanothus Centaurea Cerastium Ceratophyllum Chaenactis Chaenorhinum Chamaedaphne Chamaerhodos Chamaesyce Chamerion Cheilanthes Chenopodium Chimaphila Chorispora Chrysosplenium Cichorium Cicuta Cinna Circaea Cirsium Claytonia Clematis Cleome Clintonia Cnidium Collinsia Collomia Comandra Comarum Conimitella Conium Conringia Convolvulus Conyza Coptis Corallorhiza Coreopsis Corispermum Cornus Corydalis Corylus Cotoneaster Crataegus Crepis Cryptantha Cryptogramma Cuscuta Cyclachaena Cymopterus Cynoglossum Cyperus Cypripedium Cystopteris Dactylis Dactylorhiza Dalea Danthonia Dasiphora Datura Delphinium Deschampsia Descurainia Dianthus Dichanthelium Digitaria Diplotaxis Distichlis Dodecatheon Doellingeria Douglasia Downingia Draba Dracocephalum Drosera Dryas Dryopteris Echinochloa Echinocystis Echium Elaeagnus Elatine Eleocharis Ellisia Elodea Elyhordeum Elyleymus Elymus Empetrum Endolepis Epilobium Equisetum Eragrostis Eremopyrum Ericameria Erigeron Eriogonum Eriophorum Erodium Eruca Erucastrum Eryngium Erysimum Erythronium Eschscholzia Escobaria Eucephalus Eupatoriadelphus Euphorbia Euphrasia Eurybia Euthamia Fagopyrum Festuca Foeniculum Fragaria Fraxinus Fritillaria Fumaria Gaillardia Galeopsis Galinsoga Galium Gaultheria Gaura Gayophytum Gentiana Gentianella Gentianopsis Geocaulon Geranium Geum Glaux Glechoma Glyceria Glycyrrhiza Gnaphalium Goodyera Gratiola Grindelia Gutierrezia Gymnocarpium Gypsophila Hackelia Halenia Halimolobos Hedeoma Hedysarum Helenium Helianthus Heliotropium Heracleum Hesperis Hesperostipa Heterotheca Heuchera Hieracium Hierochloe Hippophae Hippuris Holcus Hordeum Houstonia Hudsonia Humulus Huperzia Hydrophyllum Hymenopappus Hymenoxys Hyoscyamus Hypericum Iliamna Impatiens Iris Isoetes Iva Juncus Juniperus Kalmia Knautia Kobresia Koeleria Koenigia Krascheninnikovia Lactuca Lagurus Lamium Lappula Lapsana Larix Lathyrus Ledum Lemna Leonurus Lepidium Leptarrhena Leptosiphon Lesquerella Leucanthemum Leucophysalis Lewisia Leymus Liatris Lilaea Lilium Limosella Linaria Linnaea Linum Listera Lithophragma Lithospermum Lobelia Loiseleuria Lolium Lomatium Lomatogonium Lonicera Lotus Luetkea Lupinus Luzula Lychnis Lycium Lycopodiella Lycopodium Lycopus Lygodesmia Lysimachia Lythrum Machaeranthera Madia Mahonia Maianthemum Malaxis Malva Marsilea Matricaria Matteuccia Matthiola Medicago Melampyrum Melica Melilotus Mentha Mentzelia Menyanthes Menziesia Mertensia Microseris Microsteris Mimulus Minuartia Mirabilis Mitella Moehringia Monarda Moneses Monolepis Monotropa Monroa Montia Muhlenbergia Musineon Myosotis Myosurus Myrica Myriophyllum Najas Nassella Nasturtium Navarretia Nemophila Neotorularia Nepeta Neslia Nonea Nothocalais Nuphar Nuttallanthus Nymphaea Odontites Oenothera Oligoneuron Onobrychis Ononis Onosmodium Oplopanax Opuntia Orobanche Orthilia Orthocarpus Oryzopsis Osmorhiza Oxalis Oxyria Oxytropis Packera Panicum Papaver Parietaria Parnassia Paronychia Pascopyrum Pastinaca Paxistima Pedicularis Pediomelum Pellaea Penstemon Perideridia Petasites Phacelia Phalaris Phegopteris Philadelphus Phippsia Phleum Phlox Phragmites Phyllodoce Physalis Physaria Physocarpus Physostegia Picea Picradeniopsis Picris Pinguicula Pinus Piperia Piptatherum Plagiobothrys Plantago Platanthera Poa Polanisia Polemonium Polygala Polygonum Polypodium Polypogon Polystichum Populus Portulaca Potamogeton Potentilla Prenanthes Primula Prosartes Prunella Prunus Psathyrostachys Pseudognaphalium Pseudolysimachion Pseudoroegneria Pseudotsuga Psilocarphus Psoralidium Pteridium Pterospora Puccinellia Pulsatilla Pyrola Pyrrocoma Quercus Ranunculus Raphanus Ratibida Rhamnus Rheum Rhinanthus Rhodiola Rhododendron Rhus Rhynchospora Ribes Romanzoffia Rorippa Rosa Rubus Rudbeckia Rumex Ruppia Ruta Sagina Sagittaria Salicornia Salix Salsola Salvia Sambucus Sanicula Saponaria Sarcobatus Sarracenia Saussurea Saxifraga Schedonnardus Schedonorus Scheuchzeria Schizachne Schizachyrium Schoenocrambe Schoenoplectus Scirpus Scleranthus Scolochloa Scrophularia Scutellaria Secale Securigera Sedum Selaginella Senecio Setaria Shepherdia Shinnersoseris Sibbaldia Sibbaldiopsis Silene Silybum Sinapis Sisymbrium Sisyrinchium Sium Smelowskia Solanum Solidago Sonchus Sorbus Sparganium Spartina Spergula Spergularia Sphaeralcea Sphenopholis Spinacia Spiraea Spiranthes Spirodela Sporobolus Stachys Stellaria Stenanthium Stephanomeria Streptopus Stuckenia Suaeda Suckleya Suksdorfia Symphoricarpos Symphyotrichum Symphytum Tanacetum Taraxacum Taxus Telesonix Tellima Tetraneuris Thalictrum Thelesperma Thellungiella Thermopsis Thinopyrum Thlaspi Thuja Tiarella Tofieldia Tonestus Torreyochloa Townsendia Toxicodendron Tradescantia Tragopogon Triantha Trichophorum Trientalis Trifolium Triglochin Trigonella Trillium Tripleurospermum Tripterocalyx Trisetum Triticum Trollius Tsuga Typha Urtica Utricularia Vaccaria Vaccinium Vahlodea Valeriana Ventenata Veratrum Verbascum Verbena Veronica Viburnum Vicia Viola Vulpia Wolffia Woodsia Xanthium Xerophyllum Yucca Zannichellia Zigadenus Zizania Zizia