Family: Berberidaceae
rheumatism root, twinleaf
[Podophyllum diphyllum L.]
Theodore S. Cochrane
Kitty Kohout
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
Fruits: capsule-like
Habitat: moderate moisture; woods; in rich usually not acidic soil
Conservation Status: Special Concern
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
Fruits: capsule-like
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"
Kitty Kohout
Christopher Noll
Marion Sheehan
Hugh H. Iltis
Hugh H. Iltis
Hugh H. Iltis
Robert Bierman
Christopher Noll
Christopher Noll
Christopher Noll
Christopher Noll