Native Plants

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Smith, Sandy

Helianthus hirsutus

Helianthus hirsutus Raf.

Hairy Sunflower, Rough Sunflower

Asteraceae (Aster Family)

Synonym(s): Helianthus hirsutus var. stenophyllus, Helianthus hirsutus var. trachyphyllus, Helianthus stenophyllus

USDA Symbol: HEHI2

USDA Native Status: L48 (N), CAN (I)

Hairy sunflower, 3-6 feet tall with leaves finely toothed, up to 6 inches long, tapering from 2 inches wide at the base to a fine point at the end. Stems and leaves are bristly. Ray flowers are 1 inch long and yellow. Disc flowers are brownish to yellow.

From the Image Gallery

14 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Size Notes: Up to about 6 feet tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.

Bloom Information

Bloom Color: Yellow , Brown
Bloom Time: Aug , Sep , Oct , Nov

Distribution

USA: AL , AR , CT , FL , GA , IA , IL , IN , KS , KY , LA , MD , MI , MN , MO , MS , NC , NE , NY , OH , OK , PA , SC , TN , TX , VA , WI , WV

Value to Beneficial Insects

Special Value to Native Bees

This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.

Herbarium Specimen(s)

NPSOT 0630 Collected Nov 5, 1993 in Bexar County by Mike Fox

1 specimen(s) available in the Digital Herbarium

Bibliography

Bibref 248 - Texas Wildflowers: A Field Guide (1984) Loughmiller, C. & L. Loughmiller
Bibref 286 - Wildflowers of the Texas Hill Country (1989) Enquist, M.

Search More Titles in Bibliography

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.

Additional resources

USDA: Find Helianthus hirsutus in USDA Plants
FNA: Find Helianthus hirsutus in the Flora of North America (if available)
Google: Search Google for Helianthus hirsutus

Metadata

Record Modified: 2022-12-28
Research By: TWC Staff

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