Checklist » Washington Endemics
Taxa Endemic to Washington

The following 85 taxa are believed to be endemic to Washington. Names are sorted by family, then scientific names.

Ferns and Lycophytes:
Family
Taxon (native taxa in boldface)
Common Names
(none)
Gymnosperms:
Family
Taxon (native taxa in boldface)
Common Names
(none)
Dicots:
Family
Taxon (native taxa in boldface)
Common Names
Amaranthaceae
pale bugseed
Apiaceae
Wenatchee desert-parsley, Wenatchee Mountain lomatium
Apiaceae
Knoke's biscuit-root
Apiaceae
slickrock desert-parsley, smooth lomatium
Apiaceae
Hoover's tauschia, Hoover's umbrella-wort
Apiaceae
Umptanum desert-parsley
Apiaceae
Thompson's desert-parsley
Apiaceae
potato desert-parsley, Hoover's lomatium
Asteraceae
Thompson's pincushion
Asteraceae
Wenatchee thistle
Asteraceae
basalt fleabane
Asteraceae
Flett's fleabane, Olympic Mt. fleabane
Asteraceae
Erigeron leibergii Piper[FNA20, HC, HC2]
Leiberg's fleabane
Asteraceae
Piper's fleabane
Asteraceae
Kittitas fleabane
Asteraceae
Klickitat aster
Asteraceae
or showy coneflower, Wenatchee Mountain, Washington
Asteraceae
Olympic Mountain ragwort
Asteraceae
hybrid aster
Boraginaceae
sagebrush stickseed, steppe stickseed
Boraginaceae
Taylor's stickseed
Boraginaceae
lesser showy stickseed
Boraginaceae
Thompson's cat's eye
Brassicaceae
Olympics rockcress
Brassicaceae
alpine twinpod, Washington twinpod
Campanulaceae
Olympic bellflower
Caryophyllaceae
basalt sandwort, Olympic sandwort
Caryophyllaceae
Twin Sisters sandwort
Caryophyllaceae
Seely's silene
Crassulaceae
lance-leaved stonecrop
Fabaceae
Cotton's milk-vetch, Cotton's milkvetch
Fabaceae
Columbian milk-vetch
Fabaceae
thistle milk vetch
Fabaceae
Leiberg's milk-vetch
Fabaceae
Lyall's milk-vetch
Fabaceae
pauper milk-vetch
Fabaceae
Yakima milk-vetch
Fabaceae
whited milk-vetch
Fabaceae
whited milk-vetch
Fabaceae
curve-pod milk-vetch, medic milk-vetch, spiral-pod milk-vetch
Fabaceae
curve-pod milk-vetch, medic milk-vetch, spiral-pod milk-vetch
Fabaceae
wanapum crazyweed
Fabaceae
long-stalked clover
Fabaceae
Thompson's clover
Hydrophyllaceae
wool breeches, ballhead waterleaf
Hydrophyllaceae
sticky scorpion-weed
Lamiaceae
western giant-hyssop
Malvaceae
long-sepal globemallow
Onagraceae
Hilgard's suncup
Orobanchaceae
obscure paintbrush
Orobanchaceae
Olympic paintbrush
Orobanchaceae
Mt. Rainier lousewort
Plantaginaceae
fuzzy-tongue penstemon
Plantaginaceae
Washington beardtongue
Plantaginaceae
cut-leaf kittentails
Polemoniaceae
diffuse navarretia
Polemoniaceae
yeti phlox
Polemoniaceae
Washington Jacob's-ladder, Washington polemonium
Polygonaceae
basalt desert buckwheat, Umptanum buckwheat
Polygonaceae
sulfur flower
Polygonaceae
western willow dock
Primulaceae
snow Douglasii
Ranunculaceae
thin-petal larkspur
Ranunculaceae
thin-petal larkspur
Ranunculaceae
Kittitas larkspur
Ranunculaceae
Wenatchee larkspur
Ranunculaceae
yellow-white larkspur
Rosaceae
Chelan rockmat
Rosaceae
Olympic Mountain rockmat
Valerianaceae
Wenatchee valerian
Violaceae
Flett's violet, Olympic violet
Monocots:
Family
Taxon (native taxa in boldface)
Common Names
Amaryllidaceae
Blue Mountain onion
Amaryllidaceae
fragile onion, scilla-like onion
Asparagaceae
blue camas, prairie camas
Liliaceae
Olympic fawn lily, quinault trout lily
Poaceae
Rainier reedgrass
Poaceae
Poa curtifolia Scribn.[FNA24, HC, HC2]
little mountain blue grass