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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  Lactuca ludoviciana (Nutt.) Riddell image
Photographer: from USDA Plants website           
Family Asteraceae
Lactuca ludoviciana (Nutt.) Riddell
prairie lettuce, prairie wild lettuce, western wild lettuce
Lactuca: name for "milk"
ludoviciana: referring to King Louis X, therefore, by extension, to the State of Louisiana; a form of Latin meaning "of Louisiana"
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: erect, biennial/perennial, 1'-5' tall forb with milky juice; stems leafy, smooth
Flower: head 1" wide with 20-56 bluish-white to yellow rays; inflorescence of a few, relatively large heads in loosely-branched clusters; blooms July-Sept.
Fruit:blackish, flat, dry seed with only one obvious line on each side
Leaf:bluish, with spiny edges and midrib
Habitat: sun; prairies, meadows

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

Flora of North America (off site)
Lactuca campestris Greene
Lactuca campestris Greene var. typica Wiegand
Sonchus ludovicianus Nutt.

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