Robert W. Freckmann Herbarium


Because of technology changes and personnel changes at UWSP and the Wisconsin State Herbarium, the database of plant species housed at this site was merged with the database from the OLD WisFlora website to create a new Flora of Wisconsin website at Currently we are encouraging all Wisplant viewers to begin using the Flora of Wisconsin website as soon as possible. Wisplants will remain operational through July 13th. After that date, all traffic to Wisplants will be redirected to the Flora of Wisconsin website.

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  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

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