Family: Fabaceae
[Petalostemon villosum Nutt.]
Robert Wernerehl
Wisconsin Dept. of Natural Resources
Etymology: Dalea: named after Samuel Dale (1659-1739), an English physician, botanist and botanical collector, and gardener who was the author of several botanical works and a treatise on medicinal plants. He was an associate of several major botanical figures in England,
Plants: erect, perennial, 8"-20" tall forb, softly hairy, appearing bluish
Leaves: many, narrowly elliptical, pinnately-divided into an odd number of leaflets (11-17) with the end leaflet smallest
Flowers: pale purple, 5-parted, 1/4" long; inflorescence a 1/2"-4 1/2" long, dense spike blooming from the bottom upward; blooms July-Aug.
Fruits: tiny pod not splitting open when mature
Habitat: dry; prairies; in sandy soil
Conservation Status: Special Concern
Plants: erect, perennial, 8"-20" tall forb, softly hairy, appearing bluish
Leaves: many, narrowly elliptical, pinnately-divided into an odd number of leaflets (11-17) with the end leaflet smallest
Flowers: pale purple, 5-parted, 1/4" long; inflorescence a 1/2"-4 1/2" long, dense spike blooming from the bottom upward; blooms July-Aug.
Fruits: tiny pod not splitting open when mature
Habitat: dry; prairies; in sandy soil
Conservation Status: Special Concern
Floristic Rating: Coefficient of Conservatism = 8 Atlas of the Wisconsin Prairie and Savanna Flora: by T.S. Cochrane & H.H. Iltis: habitat, distribution infomation / flowering and fruiting times USDA Plants Database: Federal Distribution and detailed information including photos
Wisconsin Dept. of Natural Resources
Derek Anderson
Robert Wernerehl
Robert Wernerehl
Robert Wernerehl
Wisconsin Dept. of Natural Resources
Derek Anderson
Derek Anderson
Derek Anderson
