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 tuberosus L. image
Photographer: Robert Bierman           

Botanical Illustration

Robert Bierman

Robert W. Freckmann

Robert W. Freckmann
Family Asteraceae
Helianthus tuberosus L.
Jerusalem-artichoke, woodland 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
tuberosus: from Latin meaning "tuberous," referring to thickened roots
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: erect, perennial, 4'-10' tall forb; stems stout, roughly hairy; from rhizomes with edible tubers
Flower: head 2" -4" wide, 10-20 yellow rays, disks yellow, bracts (phyllaries) often dark-green to blackish; inflorescence of many heads in large, branched clusters; blooms Aug.-Oct.
Leaf:lower opposite, upper 2/3 alternate, usually 1 1/2" to 4" wide, rough on top and hairy below, toothed, tapering to a long, winged stalk
Habitat: moist; disturbed sites

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

Flora of North America (off site)
Helianthus subcanescens (A.Gray) E.Watson
Helianthus tomentosus Michx.
Helianthus tuberosus L. var. subcanescens A.Gray

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