[The Mustard Family in Mt. Adams Country]

Draba and Whitlow-grasses of Mt. Adams Country

The Genus Draba

Payson's Draba: Draba paysonii

Payson's Draba: Draba paysonii

Alaska Whitlow-grass, Slender Draba: Draba albertina (Synonyms: Draba crassifolia var. nevadensis, Draba nitida, Draba stenoloba, Draba stenoloba var. nana) - Flowers yellow. Perennial. 1-2 stem leaves.

Yellowstone Draba, Yellowstone Whitlow-wort: Draba incerta (Synonyms: Draba exalata, Draba incerta var. incerta, Draba incerta var. laevicapsula, Draba incerta var. peasei, Draba laevicapsula, Draba peasei) - Flowers yellow, fading to white. Perennial.

Lancefruit Draba, Lancefruit Whitlow-wort, Lancepod Whitlow-grass, Spear-fruited Draba, Twisted Whitlow-grass: Draba lonchocarpa (Synonyms: Draba lonchocarpa var. denudata, Draba lonchocarpa var. lonchocarpa, Draba lonchocarpa var. semitonsa, Draba lonchocarpa var. thompsonii, Draba nivalis, Draba nivalis ssp. lonchocarpa, Draba nivalis var. denudata, Draba nivalis var. elongata, Draba nivalis var. exigua, Draba nivalis var. thompsonii) - Flowers white. Perennial.

Payson's Draba, Payson's Whitlow-grass: Trelease's Whitlow Grass: Draba novolympica (Synonyms: Draba paysonii, Draba paysonii var. treleasei, Draba paysonii var. treleasii) - Petals yellow. Perennial.

Slender Draba: Draba stenoloba (Synonyms: Draba acinacis, Draba hirta var. siliquosa, Draba nemorosa var. stenoloba, Draba stenoloba var. oligantha, Draba stenoloba var. stenoloba) - Petals yellow or cream, fading to white. Perennial. FRuits glabrous, 8-15 mm long. Pedicels about as long as fruits.

Spring Draba, Spring Whitlow-grass: Draba verna (Synonyms: Draba verna var. aestivalis, Draba verna var. boerhaavii, Draba verna var. major, Draba verna var. verna, Erophila verna ssp. spathulata, Erophila verna var. praecox, Erophila verna var. verna) - Petals white and bilobed. Annual.


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