Habit: Annual to perennial herb, generally cushion- or mat-forming, occasionally scapose, hairs simple, forked, or many-branched.
Leaf: basal generally rosetted; cauline entire or shallowly toothed, base generally not lobed, occasionally 0.
Inflorescence: generally many-flowered, elongated or not; bracts generally 0.
Flower: sepals bases equal; petals generally short-clawed, yellow or white (lavender or red).
Fruit: silique or silicle, dehiscent, linear to lanceolate or ovate, occasionally ovoid or spheric, cylindric or flat parallel to septum, unsegmented; stigma entire.
Seed: in 2 rows; wing generally 0.
Species In Genus: 370+ species: northern hemisphere, South America mountains.
Etymology: (Greek: acrid, describing taste of crucifer leaves)
Jepson eFlora Author: Ihsan A. Al-Shehbaz
Reference: Al-Shehbaz & Windham 2007 Harvard Pap Bot 12:409--419
Unabridged Reference: Beilstein & Windham 2003 Syst Bot 28:584--592; Hitchcock 1941 Univ Washington Publ Biol 11:1--132; Koch & Al-Shehbaz 2002 Ann Missouri Bot Gard 89:88--109; Rollins & Price 1988 Aliso 12:17--27; Schulz 1927 Pflanzenreich IV 105(Heft 89):1--396Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)Key to Draba
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