[The Mustard Family East of the Cascade Mts.]

The Genus Draba East of the Cascade Mts.

Steens Draba: Draba cusickii var. cusickii

Slender Draba: Draba albertina - Flowers yellow. Perennial. 1-2 stem leaves.

Thick-leaved Draba: Draba crassifolia - Flowers yellow, fading to white. Perennial.

Wedgeleaved Draba: Draba cuneifolia - Flowers white. Perennial.

Steens Draba: Draba cusickii var. cusickii (formerly D. sphaeroides var. cusickii) - Flowers yellow. Perennial.

Denseleaf Draba, Dense-leaf Whitlow-grass, Nuttall's Draba: Draba densifolia (Synonyms: Draba caruleomontana, Draba caeruleomontana var. piperi, Draba nelsonii, Draba pectinata, Draba sphaerula) - Flowers yellow. Perennial.

Douglas' Draba: Cusickiella douglasii (Draba douglasii ) - Flowers white. Perennial.

Yellowstone Draba: Draba incerta - Flowers yellow, fading to white. Perennial.

Lance-leaved Whitlow-grass: Draba lanceolata - Flowers white and bi-lobed. Perennial. Fruits hairy, 4-12 mm long, often contorted or twisted.

Lemmon's Whitlow-grass: Draba lemmonii var. cyclomorpha - Flowers yellow. Perennial.

Twisted Whitlow-grass: Draba lonchocarpa - Flowers white. Perennial.

Woods Draba: Draba nemorosa - Flowers pale yellow to white, entire to slightly notched. Annual. Fruits hairy, 3-12 mm long. Pedicelsto 3 cm long, longer than fruit, spreading or curved downward.

Few-seeded Draba: Draba oligosperma - Flowers yellow to off white. Perennial.

Payson's Draba: Draba paysonii var. treleasii - Petals yellow. Perennial.

Tall Whitlow-grass: Draba praealta - Petals bi-lobed, commonly white, but occasionally pale yellow. Annual. Pods hairy, 1-14 mm long, often twisted.

Carolina Whitlow-grass: Draba reptans - Petals white. Perennial.

Slender Draba or Alaska Whitlow-grass: Draba stenoloba - Petals yellow or cream, fading to white. Perennial. FRuits glabrous, 8-15 mm long. Pedicels about as long as fruits.

Spring Draba: Draba verna - Petals white and bilobed. Annual.


Paul Slichter E-Mail