Washington Flora Checklist
A Checklist of the Vascular Plants of Washington State
Hosted by the University of Washington Herbarium

 

The Washington Flora Checklist aims to be a complete checklist of the vascular plants of Washington State. The checklist currently contains 3661 unique taxa.

Taxa included in the checklist:
  • Native taxa whether extant, extirpated, or extinct.
  • Exotic taxa that are naturalized, escaped from cultivation, or persisting wild.
  • Waifs (e.g., ballast plants) and other rarely collected exotics.
  • Interspecific hybrids that are frequent or self-maintaining.
  • Unnamed taxa in the process of being described.
  • Fred Weimnann initiated development of the checklist in 1998, and with the help of Peter Zika and others a draft checklist was completed by 2002. In 2007 the checklist was transferred to the UW Herbarium, funded by grants from the Bureau of Land Management and Washington Native Plant Society.

    Please note: This checklist is still a work in progress. Use it at your discretion. Families and taxa updated from 2004 and on are the most reliable.

    Last updates made on 4/22/2014.

    Family Common Name # of Taxa Last Updated Download
    Aceraceae (see Sapindaceae)
    Acoraceae Sweet Flag Family 2 12/24/2009 txt, doc
    Adoxaceae Muskroot Family 7 8/8/2012 txt, doc
    Alismataceae Water-Plantain Family 9 12/15/2009 txt, doc
    Alstroemeriaceae Peruvian Lily Family 1 8/8/2012 txt, doc
    Amaranthaceae Amaranth Family 67 9/4/2012 txt, doc
    Amaryllidaceae Amaryllis Family 28 8/6/2012 txt, doc
    Anacardiaceae Sumac Family 3 10/21/2003 txt, doc
    Apiaceae Carrot Family 99 10/21/2003 txt, doc
    Apocynaceae Dogbane Family 8 10/21/2003 txt, doc
    Aquifoliaceae Holly Family 1 10/21/2003 txt, doc
    Araceae Arum Family 13 10/21/2003 txt, doc
    Araceae (see also Acoraceae)
    Araliaceae Ginseng Family 5 10/21/2003 txt, doc
    Aristolochiaceae Birthwort Family 1 10/21/2003 txt, doc
    Asclepiadaceae (see Apocynaceae)
    Asparagaceae Asparagus Family 18 8/6/2012 txt, doc
    Aspleniaceae Spleenwort Family 3 10/21/2003 txt, doc
    Asteraceae Aster Family 473 12/5/2008 txt, doc
    Azollaceae (see Salviniaceae)
    Balsaminaceae Touch-Me-Not Family 6 10/21/2003 txt, doc
    Berberidaceae Barberry Family 9 10/21/2003 txt, doc
    Betulaceae Birch Family 14 10/21/2003 txt, doc
    Bignoniaceae Trumpet Creeper Family 2 3/9/2011 txt, doc
    Blechnaceae Chain Fern or Deer Fern Family 2 10/21/2003 txt, doc
    Boraginaceae Borage Family 117 9/4/2012 txt, doc
    Brassicaceae Mustard Family 161 12/23/2011 txt, doc
    Buddlejaceae (see Scrophulariaceae)
    Butomaceae Flowering Rush Family 1 10/21/2003 txt, doc
    Cabombaceae Watershield Family 2 12/10/2008 txt, doc
    Cactaceae Cactus Family 3 10/21/2003 txt, doc
    Callitrichaceae (see Plantaginaceae)
    Campanulaceae Bellflower Family 17 10/21/2003 txt, doc
    Cannabaceae Hemp Family 3 1/3/2014 txt, doc
    Capparaceae (see Cleomaceae)
    Caprifoliaceae Honeysuckle Family 15 10/21/2003 txt, doc
    Caryophyllaceae Pink Family 101 2/12/2013 txt, doc
    Celastraceae Bittersweet Family 7 10/21/2003 txt, doc
    Ceratophyllaceae Hornwort Family 2 12/15/2008 txt, doc
    Chenopodiaceae (see Amaranthaceae)
    Cleomaceae Spiderflower Family 3 8/8/2012 txt, doc
    Comandraceae Bastard Toadflax Family 3 12/10/2012 txt, doc
    Commelinaceae Spiderwort Family 2 12/21/2008 txt, doc
    Compositae (see Asteraceae)
    Convolvulaceae Morning-Glory Family 17 2/8/2010 txt, doc
    Cornaceae Dogwood Family 4 10/21/2003 txt, doc
    Crassulaceae Stonecrop Family 19 10/21/2003 txt, doc
    Crossosomataceae Rockflower Family 1 10/21/2003 txt, doc
    Cruciferae (see Brassicaceae)
    Cucurbitaceae Cucumber Family 4 10/21/2003 txt, doc
    Cupressaceae Cypress Family 7 10/21/2003 txt, doc
    Cuscutaceae (see Convolvulaceae)
    Cyperaceae Sedge Family 197 11/19/2009 txt, doc
    Dennstaedtiaceae Bracken Fern Family 1 10/21/2003 txt, doc
    Dipsacaceae Teasel Family 2 10/21/2003 txt, doc
    Droseraceae Sundew Family 3 10/21/2003 txt, doc
    Dryopteridaceae Wood Fern Family 27 10/21/2003 txt, doc
    Elaeagnaceae Oleaster Family 4 10/21/2003 txt, doc
    Elatinaceae Waterwort Family 3 12/22/2008 txt, doc
    Empetraceae (see Ericaceae)
    Equisetaceae Horsetail Family 13 12/22/2008 txt, doc
    Ericaceae Heath Family 57 12/15/2009 txt, doc
    Euphorbiaceae Spurge Family 15 10/21/2003 txt, doc
    Fabaceae Pea Family 216 12/2/2009 txt, doc
    Fagaceae Beech Family 5 10/21/2003 txt, doc
    Fumariaceae (see Papaveraceae)
    Garryaceae Silktassel Family 1 10/21/2003 txt, doc
    Gentianaceae Gentian Family 16 10/21/2003 txt, doc
    Geraniaceae Geranium Family 13 10/21/2003 txt, doc
    Grossulariaceae Currant Family 23 10/27/2009 txt, doc
    Haloragaceae Water Milfoil Family 9 10/21/2003 txt, doc
    Haloragidaceae (see Haloragaceae, Plantaginaceae)
    Hippuridaceae (see Plantaginaceae)
    Hydrangeaceae Hydrangea Family 2 10/21/2003 txt, doc
    Hydrocharitaceae Frogbit or Tapegrass or Waterweed Family 7 10/21/2003 txt, doc
    Hydrophyllaceae (see Boraginaceae)
    Hypericaceae St. John's Wort Family 14 9/4/2012 txt, doc
    Iridaceae Iris Family 19 12/27/2008 txt, doc
    Isoetaceae Quillwort Family 7 10/21/2003 txt, doc
    Juglandaceae Walnut Family 3 10/21/2003 txt, doc
    Juncaceae Rush Family 66 10/21/2003 txt, doc
    Juncaginaceae Arrow-grass Family 4 10/21/2003 txt, doc
    Juncaginaceae (see also Scheuchzeriaceae)
    Lamiaceae Mint Family 53 10/21/2003 txt, doc
    Lemnaceae (see Araceae)
    Lentibulariaceae Bladderwort Family 8 10/21/2003 txt, doc
    Lilaeaceae (see Juncaginaceae)
    Liliaceae Lily Family 30 8/7/2012 txt, doc
    Limnanthaceae Meadowfoam Family 1 10/21/2003 txt, doc
    Linaceae Flax Family 3 10/21/2003 txt, doc
    Linderniaceae False Pimpernel Family 1 8/8/2012 txt, doc
    Linnaeaceae Twin Flower Family 1 4/11/2013 txt, doc
    Loasaceae Blazingstar Family 4 10/21/2003 txt, doc
    Lycopodiaceae Club-Moss Family 12 10/21/2003 txt, doc
    Lythraceae Loosestrife Family 5 10/21/2003 txt, doc
    Malvaceae Mallow Family 19 10/21/2003 txt, doc
    Marsileaceae Pepperwort or Water-Clover Family 3 3/5/2009 txt, doc
    Mazaceae Mazus Family 1 8/7/2012 txt, doc
    Melanthiaceae False-Hellebore Family 12 8/8/2012 txt, doc
    Menyanthaceae Buck-Bean Family 3 10/21/2003 txt, doc
    Molluginaceae Carpetweed Family 1 10/21/2003 txt, doc
    Monotropaceae (see Ericaceae)
    Montiaceae Miner's Lettuce Family 32 8/7/2012 txt, doc
    Moraceae Mulberry Family 2 10/21/2003 txt, doc
    Myricaceae Bayberry Family 2 10/21/2003 txt, doc
    Myrsinaceae Myrsine Family 12 10/30/2009 txt, doc
    Najadaceae (see Hydrocharitaceae)
    Nitrariaceae Harmal Family 1 8/8/2011 txt, doc
    Nyctaginaceae Four-O'clock Family 4 10/21/2003 txt, doc
    Nymphaeaceae Water-Lily Family 3 10/21/2003 txt, doc
    Nymphaeaceae (see also Cabombaceae)
    Oleaceae Olive Family 3 10/21/2003 txt, doc
    Onagraceae Evening-Primrose Family 64 2/1/2010 txt, doc
    Ophioglossaceae Adder's-Tongue Family 17 10/21/2003 txt, doc
    Orchidaceae Orchid Family 40 12/12/2013 txt, doc
    Orobanchaceae Broom-Rape Family 55 1/14/2010 txt, doc
    Oxalidaceae Wood-Sorrel Family 6 10/21/2003 txt, doc
    Paeoniaceae Peony Family 1 10/27/2009 txt, doc
    Papaveraceae Poppy Family 15 10/21/2003 txt, doc
    Parnassiaceae (see Celastraceae)
    Paulowniaceae Princess Tree Family 1 8/8/2012 txt, doc
    Penthoraceae Penthorum Family 1 11/6/2009 txt, doc
    Phrymaceae Lopseed Family 26 8/6/2012 txt, doc
    Phytolaccaceae Pokeweed family 1 10/21/2003 txt, doc
    Pinaceae Pine Family 21 10/21/2003 txt, doc
    Plantaginaceae Plantain Family 99 10/21/2003 txt, doc
    Plumbaginaceae Leadwort or Plumbago Family 1 10/21/2003 txt, doc
    Poaceae Grass Family 343 8/3/2009 txt, doc
    Polemoniaceae Phlox Family 61 1/7/2010 txt, doc
    Polygonaceae Buckwheat Family 96 11/27/2007 txt, doc
    Polypodiaceae Polypody Fern Family 4 10/21/2003 txt, doc
    Polypodiaceae (see also Blechnaceae, Dennstaedtiaceae, Pteridaceae, Thelypteridaceae)
    Pontederiaceae Pickerelweed Family 2 10/21/2003 txt, doc
    Portulacaceae Purslane Family 1 8/7/2012 txt, doc
    Portulacaceae (see also Montiaceae)
    Potamogetonaceae Pondweed Family 24 4/6/2009 txt, doc
    Potamogetonaceae (see also Ruppiaceae)
    Primulaceae Primrose Family 15 10/29/2009 txt, doc
    Pteridaceae Maidenhair Fern Family 12 12/28/2008 txt, doc
    Pyrolaceae (see Ericaceae)
    Ranunculaceae Buttercup Family 104 4/13/2009 txt, doc
    Resedaceae Mignonette Family 2 10/21/2003 txt, doc
    Rhamnaceae Buckthorn Family 7 10/21/2003 txt, doc
    Rosaceae Rose Family 172 12/31/2009 txt, doc
    Rubiaceae Madder Family 17 10/21/2003 txt, doc
    Ruppiaceae Ditch-Grass Family 2 10/21/2003 txt, doc
    Salicaceae Willow Family 43 4/2/2010 txt, doc
    Salviniaceae Floating-Fern Family 2 9/4/2012 txt, doc
    Santalaceae (see Viscaceae, Comandraceae)
    Sapindaceae Soapberry Family 9 8/7/2012 txt, doc
    Sarraceniaceae Pitcherplant Family 4 11/6/2009 txt, doc
    Saxifragaceae Saxifrage Family 58 6/14/2013 txt, doc
    Scheuchzeriaceae Scheuchzeria or Rannoch-rush Family 1 10/21/2003 txt, doc
    Scheuchzeriaceae (see also Juncaginaceae)
    Scrophulariaceae Figwort Family 9 8/7/2012 txt, doc
    Selaginellaceae Spike-Moss Family 4 10/21/2003 txt, doc
    Simaroubaceae Quassia-Wood Family 1 10/21/2003 txt, doc
    Solanaceae Potato Family 22 2/8/2010 txt, doc
    Sparganiaceae (see Typhaceae)
    Talinaceae Fameflower Family 2 8/8/2012 txt, doc
    Tamaricaceae Tamarisk Family 3 10/21/2003 txt, doc
    Taxaceae Yew Family 2 10/21/2003 txt, doc
    Thelypteridaceae Maiden Fern Family 3 10/21/2003 txt, doc
    Theophrastaceae Joewood Family 1 10/30/2009 txt, doc
    Thymelaeaceae Mezereum Family 2 10/21/2003 txt, doc
    Tofieldiaceae False-Asphodel Family 1 8/6/2012 txt, doc
    Typhaceae Cat-Tail Family 9 10/21/2003 txt, doc
    Ulmaceae Elm Family 2 10/21/2003 txt, doc
    Urticaceae Nettle Family 7 10/21/2003 txt, doc
    Valerianaceae Valerian Family 15 10/21/2003 txt, doc
    Vallisneriaceae (see Hydrocharitaceae)
    Verbenaceae Verbena Family 6 10/21/2003 txt, doc
    Violaceae Violet Family 27 2/5/2010 txt, doc
    Viscaceae Mistletoe Family 4 12/10/2012 txt, doc
    Vitaceae Grape Family 3 10/21/2003 txt, doc
    Xanthorrhoeaceae Grasstree Family 1 8/8/2012 txt, doc
    Zannichelliaceae (see Potamogetonaceae)
    Zosteraceae Eel-Grass Family 5 10/21/2003 txt, doc
    Zygophyllaceae Creosote-Bush Family 2 10/21/2003 txt, doc


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