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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  Helianthus occidentalis Riddell subsp. occidentalis image
Photographer: Kenneth J. Sytsma           

Emmet J. Judziewicz

Emmet J. Judziewicz

Merel R. Black

Merel R. Black

Christopher Noll
Family Asteraceae
Helianthus occidentalis Riddell subsp. occidentalis
few-leaved sunflower, naked-stemmed sunflower, western sunflower
Helianthus: derived from two Greek words helios, "sun," and anthos, "flower," in reference to the sunflower's supposed tendency to always turn toward the sun
occidentalis: Latin for "western"
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: erect, perennial, 2'-5' tall forb; stems with a few, small leaves
Flower: head 1 1/2" - 2 3/4" wide with 10-15 yellow rays, disk yellow; inflorescence of several heads in loosely-branched clusters; blooms July-Sept.
Leaf:largest leaves basal on very long stalks, only 3-8 small opposite pairs on the stemsleaf drawing
Habitat: full sun; dry to moderate moisture; prairies; in rocky, sandy, loamy soil

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

Flora of North America (off site)
Helianthus dowellianus M.A.Curtis
Helianthus occidentalis Riddell var. dowellianus (M.A.Curtis) Torr. & A.Gray
Helianthus occidentalis Riddell var. occidentalis

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