Page author: David Giblin
Helianthus petiolaris
prairie sunflower
Specimens
Photos
Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to the Atlantic Coast.
Habitat: Dry, open areas, often where disturbed.
Flowers: June-September
Origin: Introduced from the Great Plains
Growth Duration: Annual
Conservation Status: Not of concern
Pollination: Bumblebees, bees, butterflies, wasps
Description:
[none provided]
Accepted Name:
Helianthus petiolaris Nutt.
Publication: J. Acad. Nat. Sci. Philadelphia. 2: 115. 1821.
Publication: J. Acad. Nat. Sci. Philadelphia. 2: 115. 1821.
Synonyms & Misapplications:
Helianthus petiolaris Nutt. var. petiolaris
Infraspecies:
- ssp. petiolaris – prairie sunflower Occurring east of the Cascades crest in Washington; Washington to California, east to the Atlantic Coast.
Additional Resources:
PNW Herbaria: Specimen records of Helianthus petiolaris in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Helianthus petiolaris checklist entry.
OregonFlora: Helianthus petiolaris information.
E-Flora BC: Helianthus petiolaris atlas page.
CalPhotos: Helianthus petiolaris photos.
USDA Plants: Helianthus petiolaris information.
9 photographs:
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