Family: Brassicaceae
rock whitlow-grass
[Draba arabisans var. arabisans Michx., more... ]
Etymology: Draba: from Greek drabe for "sharp" or "acrid" and referring to the burning taste of the leaves which supposedly had a medicinal value as a poultice
Plants: perennial, 4"-16" tall forb
Leaves: Basal leaves toothed, oblong, hairy, often with sharp teeth
Flowers: white, 4-parted, 1/3"-1/2' wide, buds yellow; inflorescence up to 4" long in a loose cluster of stalked flowers; blooms May-June
Fruits: long, narrow, smooth, twisted pod
Habitat: limestone cliffs
Conservation Status: Special Concern
Plants: perennial, 4"-16" tall forb
Leaves: Basal leaves toothed, oblong, hairy, often with sharp teeth
Flowers: white, 4-parted, 1/3"-1/2' wide, buds yellow; inflorescence up to 4" long in a loose cluster of stalked flowers; blooms May-June
Fruits: long, narrow, smooth, twisted pod

Habitat: limestone cliffs
Conservation Status: Special Concern
Restricted to limestone cliffs of the Niagara Escarpment in Dodge, Door, and Fond du Lac Cos. and rarely on alkaline rockshores of Door Co. Strangely absent from the large areas of Escarpment in Calumet Co. This is a northern species with some isolated stations in the northern United States. The fruits twist when mature. Restricted to limestone cliffs of the Niagara Escarpment in Dodge, Door, and Fond du Lac Cos. and rarely on alkaline rockshores of Door Co. Strangely absent from the large areas of Escarpment in Calumet Co. This is a northern species with some isolated stations in the northern United States. The fruits twist when mature.
Flora of North America: Flora of North America Floristic Rating: Coefficient of Conservatism = 10 WIS DNR-Bureau of Endangered Resources: Detailed information on Wisconsin listed species including state and federal status, photos, etc. USDA Plants Database: Federal Distribution and detailed information including photos Minnesota Dept. of Natural Resources: Rare Species Guide; description, conservation, photos, maps, etc.