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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Rudbeckia grandiflora (Rough coneflower)
Bransford, W.D. and Dolphia

Rudbeckia grandiflora

Rudbeckia grandiflora (D. Don) J.F. Gmel. ex DC.

Rough Coneflower, Tall Coneflower, Largeflower Coneflower

Asteraceae (Aster Family)

Synonym(s):

USDA Symbol: RUGR

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

The erect, coarse tall coneflower grows 2 1/2-5 feet tall and usually forms colonies. The stem and leaves have rough hairs. Leaves at the bottom of the plant have long petioles, but the higher ones attach directly to the main stem. They are 2 1/2-6 inches long and half as wide, shallow toothed with prominent ribs. Flower heads have 8-12 ray flowers, 3/4-1 inch long, yellow and drooping. The cones are 3/4-1 1/4 inches high, gray-green, but turning brown as the flowers mature. Honey bees, bugs, butterflies, and beetles feed on the nectar and pollen (248).

 

From the Image Gallery

24 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Size Notes: 2.5-5'
Flower:
Size Class: 3-6 ft.

Bloom Information

Bloom Color: Yellow , Green
Bloom Time: Apr , May , Jun , Jul , Aug

Distribution

USA: AR , GA , IL , KS , KY , LA , MO , MS , OH , OK , TX
Canada: ON

Growing Conditions

Light Requirement: Sun
Soil Moisture: Moist

Benefit

Conspicuous Flowers: yes

Value to Beneficial Insects

Special Value to Native Bees

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

Bibliography

Bibref 248 - Texas Wildflowers: A Field Guide (1984) Loughmiller, C. & L. Loughmiller

Search More Titles in Bibliography

Additional resources

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

Metadata

Record Modified: 2020-06-23
Research By: TWC Staff

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