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Helianthus divaricatus - (image 1 of 4)

Taxonomy

Family: Asteraceae

Habitat

Dry woods and other open places.

Associates

Distribution

Eastern United States and adjacent Canada, from MA and NH to WI, south to FL, LA, and eastern OK.

Morphology

Herbaceous perennial with fibrous roots and long rhizomes; stems 0.5-1.5 m, glabrous below the inflorescence, often glaucous; leaves opposite, sessile or sometimes with a short petiole to 5 mm, scabrous above, hirsute at least on the main veins beneath, narrowly lanceolate to broadly lance-ovate, 5-18 cm long, broadest near the truncate or broadly rounded base, tapering to a slender acuminate tip, shallowly toothed or subentire, trinerved near the base; heads one-several at the ends of stiff cymose branches; disk yellow, 1-1.5 cm wide; involucral bracts lance-acuminate or attenuate, ciliolate, rather loose, often with reflexed tips; rays 8-15, 1.5-3 cm long.

Notes

Flowers June to September

Wetland indicator: NA

Distinguished by its nearly sessile leaves with rounded bases and hairs on the veins underneath.

References

Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. Second Ed.
The New York Botanical Garden. Bronx, NY

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