Etymology: Jeffersonia: for Thomas Jefferson, third president of USA and naturalists
Plants: erect, perennial, 4"-8" tall forb, smooth
Leaves: all basal, deeply divided into 2 unequal half-ovals
Flowers: white, usually 8-parted, 1 1/4" wide; solitary on leafless stalk; blooms April-May
Habitat: moderate moisture; woods; in rich usually not acidic soil
Conservation Status: Special Concern
Flora of North America: Flora of North America Floristic Rating: Coefficient of Conservatism = 9 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. USDA Agricultural Research Service (ARS): Images of seeds, fruits, embryos, etc. Southwest School of Botanical Medicine: Britton & Brown Illustrated Flora - 2nd Edition (1913) "An Illustrated Flora of the Northern United States and Canada"