Dalea candida Michx. ex Willd.  
Family: Fabaceae
slender white prairie-clover
[Petalostemon candidum (Michx. ex Willd.) Michx.]
Dalea candida image
Christopher Noll  
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, 1'-3' tall, smooth forb
Leaves: small, pinnately-divided into an odd number of leaflets (5-9) slightly wider than D. purpurea
Flowers: white, 5-parted, 1/4" long; inflorescence up to 2" long, dense, cylindrical spike blooming from the bottom upward; blooms June-July
Fruits: tiny pod not splitting open when mature
Habitat: full sun; dry to moderate moisture; prairies, meadows; in sandy, loamy soil
Conservation Status: Native
Dalea candida image
Thomas A. Meyer  
Dalea candida image
Christopher Noll  
Dalea candida image
Theodore S. Cochrane  
Dalea candida image
from USDA Plants website