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Helianthus pauciflorus ssp. pauciflorus (Stiff sunflower)
Smith, R.W.

Helianthus pauciflorus ssp. pauciflorus

Helianthus pauciflorus Nutt. ssp. pauciflorus

Stiff Sunflower

Asteraceae (Aster Family)

Synonym(s): Helianthus laetiflorus var. rigidus, Helianthus rigidus


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

Stiff sunflower is one of the most widely cultivated of the perennial sunflowers. Its 3-6 ft. stem is lined with dark-green foliage and it bears showy sunflowers on long flower stalks.


From the Image Gallery

2 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Size Class: 3-6 ft.

Bloom Information

Bloom Color: Yellow
Bloom Time: Jul , Aug , Sep


USA: AR , CT , GA , IA , IL , IN , KS , KY , MA , ME , MI , MN , MO , MT , ND , NE , NH , NJ , OK , RI , SD , TX , VA , VT , WI
Canada: MB , NS , ON , PE , QC , SK
Native Distribution: Ont. & MI to Sask., s. to LA, NE & CO; naturalized eastward
Native Habitat: Dry, upland prairies; plains

Growing Conditions

Light Requirement: Sun
Soil Description: Various dry soils.
Conditions Comments: Not Available

Value to Beneficial Insects

Special Value to Native Bees

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


Description: Excellent germination occurs with seeds that have been refrigerated over winter. Stem cuttings can be taken before flowering, but the easiest method of increase in to divide the clump in early spring.
Seed Collection: Nutlets usually mature 2-3 weeks after flowering. To beat finched to the seeds, secure a small bag around seeds heads after the flowers fade. Air-dry collected seed heads, separate nutlets from chaff, and store in sealed, refrigerated containers.
Seed Treatment: Not Available
Commercially Avail: yes

Additional resources

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


Record Modified: 2012-12-20
Research By: TWC Staff

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