Robert W. Freckmann Herbarium


  Helianthus strumosus L. image
Photographer: Merel R. Black           

Botanical Illustration

Merel R. Black

Merel R. Black

Paul Drobot

Paul Drobot

Paul Drobot

Paul Drobot
Family Asteraceae
Helianthus strumosus L.
pale-leaved woodland sunflower, rough-leaved 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
strumosus: Latin for "swelling" or "tumor"
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: erect, perennial, 2'-6' tall forb; stems smooth below the inflorescence but often with a whitish fuzz
Flower: head 1 1/2" - 4" wide, 8-15 yellow rays, disk yellow; unequal bracts (phyllaries) usually the same or slightly longer than the disk, pointed, and slightly spreading; blooms July-Sept.
Leaf:lower mostly opposite, upper becoming alternate; usually widely lance-like to narrowly oval, thick, firm, upper side rough to fuzzy, lower side fuzzy, short winged stalk, shallow or no teeth leaf drawing
Habitat: full to partial sun; dry to moderate moisture; woods; in sandy, loamy soil
(Glossary)

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

Flora of North America (off site)
Synonyms 
Helianthus montanus E.Watson
Helianthus saxicola Small

         
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