Family: Apocynaceae
swamp milkweed
Paul Drobot
Damon A. Smith
University of Wisconsin-Stevens Point, Robert W. Freckmann Herbarium (UWSP)
Etymology: Asclepias: named for the Greek god of healing Asklepios
Plants: erect, perennial, up to 5' tall forb, milky juice, mostly hairless or sparsely downy; stems with divided branches toward the top
Leaves: opposite, lance-like or oblong-linear with pointed tips and mostly pointed bases
Flowers: deep pink to red, 5-parted, 3/8" tall, fragrant,
horns much taller than the hoods; inflorescence usually several, erect umbels; blooms July-Aug.
Fruits: pods with many seeds on silky hairs
Habitat: full sun; wet to moist; shores, marshes, streambanks, prairies; in sandy, loamy soil
Hazardous: Careful, this plant is hazardous!
Conservation Status: Native
Plants: erect, perennial, up to 5' tall forb, milky juice, mostly hairless or sparsely downy; stems with divided branches toward the top
Leaves: opposite, lance-like or oblong-linear with pointed tips and mostly pointed bases
Flowers: deep pink to red, 5-parted, 3/8" tall, fragrant,
horns much taller than the hoods; inflorescence usually several, erect umbels; blooms July-Aug.Fruits: pods with many seeds on silky hairs
Habitat: full sun; wet to moist; shores, marshes, streambanks, prairies; in sandy, loamy soil
Hazardous: Careful, this plant is hazardous!
Conservation Status: Native
Floristic Rating: Coefficient of Conservatism = 5, Wetland Indicator = OBL 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 Dan Tenaglia's The Missouri Flora: Fabulous photographs; detailed descriptions; color and leave arrangement key. USGS - Northern Prairie Wildlife Research Center: Wetland Plants and Plant Communities of Minnesota and Wisconsin Illinois Wildflowers: Wonderful photographs; detailed descriptions; color and leaf arrangement key Southwest School of Botanical Medicine: Britton & Brown Illustrated Flora - 2nd Edition (1913) "An Illustrated Flora of the Northern United States and Canada"
Damon A. Smith
Margery Melgaard
Josh Sulman
Emmet J. Judziewicz
Josh Sulman
Josh Sulman
Derek Anderson
Josh Sulman
Paul Drobot
John M. Schoeneker
Josh Sulman
Paul Drobot
Matthew L. Wagner
John M. Schoeneker
Paul Drobot
Paul Drobot
Derek Anderson
Derek Anderson
Aaron_Carlson
Aaron Carlson
Aaron_Carlson
Aaron_Carlson