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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  Proserpinaca palustris L. var. crebra Fernald & Griscom image
Photographer: Robert H. Read           
Family Haloragaceae
Proserpinaca palustris L. var. crebra Fernald & Griscom
common mermaid-weed, marsh mermaid-weed
Proserpinaca: Pliny's name of Polygonum meaning "pertaining to Proserpine"
palustris: "of marshes"
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: perennial, semi-aquatic to aquatic, often found in clones; stems with many short, dark spikes
Flower: purplish to greenish, 3-parted, small, sepals triangular; solitary to 3 together, stalkless in the axils of the emersed leaves
Fruit:1/10" wide, nut-like, not winged, sides nearly flat, 3-seeded
Leaf:alternate, submersed leaves oval to oblong and pinnately dissected
Habitat: swamps, marshes, shores, ephemeral woodland ponds

More Information Natural Communities Herbarium Specimens
All Proserpinaca list Google- Images or Text
Proserpinaca palustris L. var. amblyogona Fernald

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