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.

Please direct any comments to

Thank you.

  Lathyrus palustris L. image
Photographer: Robert R. Kowal           

Botancial Illustration

Caroline A. Creevey

Merel R. Black

Merel R. Black
Family Fabaceae
Lathyrus palustris L.
marsh pea, marsh vetchling, slender-stem pea-vine
Lathyrus: from the Greek lathyros, an old name for "pea"
palustris: "of marshes"
Hazardous hazard symbol- click for definition
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: climbing, perennial, 1'-4' long forb; stems often winged
Flower: purple and white, 5-parted, 3/4" long; inflorescence a long-stalked cluster (raceme) of 2-6 stalked flowers; blooms June-July
Fruit:long pod
Leaf:pinnately-divided into 2-4 pairs of leaflets with a tendril at the end; asymmetrical, sharp-pointed, leaf-like appendages at the base
Habitat: wet to moist; meadows, shores, marshes

More Information Natural Communities Herbarium Specimens
All Lathyrus list Ethnobotany Information Google- Images or Text
Lathyrus myrtifolius Muhl. ex Willd.
Lathyrus myrtifolius Muhl. ex Willd. var. macranthus T.G.White
Lathyrus palustris L. subsp. pilosus (Cham.) Hultén
Lathyrus palustris L. var. genuinus Gren. & Godr.
Lathyrus palustris L. var. linearifolius Ser.
Lathyrus palustris L. var. macranthus (T.G.White) Fernald
Lathyrus palustris L. var. meridionalis Butters & H.St.John
Lathyrus palustris L. var. myrtifolius (Muhl. ex Willd.) A.Gray
Lathyrus palustris L. var. palustris
Lathyrus palustris L. var. pilosus (Cham.) Ledeb.
Lathyrus palustris L. var. retusus Fernald & H.St.John
Lathyrus pilosus Cham.
Orobus myrtifolius (Muhl. ex Willd.) A.Hall

Botany News/Events
Book We Recommend
Historical Botanists
Other Links
Botanical Club of Wisconsin (off site)
UW-Stevens Point Biology Dept.
Plants of Wisconsin
Vascular Plants
Natural Communities
Botany News/Events
Other Links
Lichens (off site)   
Tom Volk's Fungi (off site)
Taxonomy of Vascular Plants
                          Vascular Plants
Browse by Identification Guides
Family Wildflowers
Genus Trees
Common Names Shrubs
Search by Vines
Names Aquatic-Semi aquatic
Specimens Ferns - Fern Allies
Blooming Times Grasses, Sedges, or Rushes
County & Status Other Resources  
Town Range Taxonomy of Vascular Plants
  WI Checklist & CofC Values
Browse by:
Common Name
Search by:
Copyright © 2012 Permissions Contact Us Web Map