Apocynum sibiricum
aka A. canabinum var hypericifolium
Prairie Dogbane
 
North America

Rhizomatous perennial of sandy or rocky woodlands and open areas.
 
Small, urn-shaped, white flowers and paired, follicular fruits. The anthers are united to the enlarged, modified style head. Its seed has tufts of hairs.
 
 
 
 
 

 

 

 
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