Apocynum cannabinum  
Family: Apocynaceae
hemp-dogbane, Indian hemp
[Apocynum album var. hypericifolium Greene, Apocynum cannabinum var. angustifolium L., Apocynum cannabinum var. glaberrimum L., Apocynum cannabinum var. greeneanum L., Apocynum cannabinum var. nemorale L., Apocynum cannabinum var. pubescens L., Apocynum cannabinum var. suksdorfii L., Apocynum nevadense L. N. Goodding, Apocynum pubescens Mitch. ex R.Br., Apocynum suksdorfii Greene, Apocynum suksdorfii var. angustifolium Greene]
Apocynum cannabinum image
Christopher Noll  
Etymology: Apocynum: from the Greek for "away from dog," i.e. noxious to dogs, in reference to its ancient use as a dog poison, hence dogbane
Plants: erect, perennial, 2'-5' tall forb, clone-forming, milky juice; branched toward the top of the main stem
Leaves: opposite, short-stalked with sharp to rounded bases, erect or upward-pointing, very variable
Flowers: white to greenish, 5-parted, 1/8"-1/4" wide, cylindrical or urn-shaped, erect with erect or slightly spreading petals; inflorescence a branched cluster (cyme), main cyme terminal, others from the upper leaf axils; blooms June-Aug.
Fruits: paired, long, very narrow pod with seeds on silky hair
Habitat: dry to moderate moisture; roadsides, prairies
Hazardous: Careful, this plant is hazardous!
Conservation Status: Native
Apocynum cannabinum image
Gary Fewless  
Apocynum cannabinum image
Botanical Illustration  
Apocynum cannabinum image
Christopher Noll  
Apocynum cannabinum image
Merel R. Black