Robert W. Freckmann Herbarium


  Polanisia dodecandra (L.) DC. image
Photographer: Merel R. Black           

Emmet J. Judziewicz

Merel R. Black

Robert H. Read

Robert W. Freckmann

Robert W. Freckmann
Family Cleomaceae
Polanisia dodecandra (L.) DC.
rough-seed clammy-weed
Polanisia: from poly for "many" and ansos for "unequal," referring to how this differs from the stamens in Cleome
dodecandra: having twelve stamens
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: erect, annual, 8"-20" tall forb, with sticky hairs and unpleasant odor
Flower: white to pinkish, 4-parted, 1/4" long, irregular-shaped with long claws, the side petals longest, stamens much longer than the petals; inflorescence a terminal cluster (raceme) of many, stalked flowers; blooms July-Sept.
Fruit:long, pea-like capsule, mostly stalkless, erect, slightly hairy, sticky
Leaf:3-parted, on stalks about the same length as the leaf blade
Habitat: disturbed sites, stream sides; in gravelly, sandy soil
(Glossary)

More Information Natural Communities Herbarium Specimens
All Polanisia list Google- Images or Text

Flora of North America (off site)
Synonyms 
(for list of synonyms - see the subspecies)

         
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