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Rudbeckia grandiflora var. alismifolia

Rudbeckia grandiflora (D. Don) J.F. Gmel. ex DC. var. alismifolia (Torr. & A. Gray) Cronquist

Rough Coneflower, Large Coneflower

Asteraceae (Aster Family)

Synonym(s): Rudbeckia alismifolia


USDA Native Status: L48 (N)

The large flower heads of this 1 1/2-4 ft. perennial have yellow rays and brown discs. The rays are nearly 3 in. long and are usually drooping. The dark disc becomes cone-shaped and nearly an inch tall. Large coneflower’s slender stalks bear lance-shaped leaves which become progressively smaller up the stalk.


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Plant Characteristics

Duration: Perennial
Habit: Herb
Size Notes: Up to about 4 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: Red , Yellow
Bloom Time: May , Jun , Jul , Aug


USA: AR , KY , LA , MS , TX
Native Distribution: KY & MO to LA & e. TX
Native Habitat: Prairies; roadsides; dry, open woods

Growing Conditions

Light Requirement: Sun
Soil Moisture: Dry
Soil Description: Dry soils.

Value to Beneficial Insects

Special Value to Native Bees

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


Commercially Avail: yes

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Rudbeckia grandiflora var. alismifolia in USDA Plants
FNA: Find Rudbeckia grandiflora var. alismifolia in the Flora of North America (if available)
Google: Search Google for Rudbeckia grandiflora var. alismifolia


Record Modified: 2023-01-13
Research By: TWC Staff

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