OF THE CAROLINAS & GEORGIA

Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales

WEAKLEY'S FLORA (10/20/20):
Rudbeckia maxima   FAMILY Asteraceae   NEW! Click to go to FSUS key


SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Rudbeckia maxima   FAMILY Asteraceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Rudbeckia maxima

 

COMMON NAME:
Giant Coneflower


         To see larger pictures, click or hover over the thumbnails.

image of Rudbeckia maxima, Giant Coneflower

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_ruma3_001_lvd

        

image of Rudbeckia maxima, Giant Coneflower

USDA-NRCS PLANTS Database / USDA Wetland flora: Field office illustrated guide    pnd_ruma3_007_lvd

        

image of Rudbeckia maxima, Giant Coneflower

JK Marlow    jkm0406b_02

June    York County    SC

Daniel Stowe Botanical Garden

Disc 4-8cm at maturity, per Wildflowers of the Eastern United States.

image of Rudbeckia maxima, Giant Coneflower

JK Marlow    jkm0406b_04

June    York County    SC

Daniel Stowe Botanical Garden

Leaves strongly blue-green and glaucous, the largest 7-16cm wide, per Weakley's Flora.

 

WEAKLEY'S FLORA (10/20/20):
Rudbeckia maxima   FAMILY Asteraceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Rudbeckia maxima   FAMILY Asteraceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Rudbeckia maxima

 

Find by SCIENTIFIC NAME:

1278

Forb
Perennial

Native: south central US

Waif(s)

Habitat: Pinelands, prairies, low areas in silty or sandy soils, also (eastwards) in disturbed areas (persistent from horticultural use), per Weakley's Flora

map
NEW! Click here to see a map from Weakley's Flora of the Southeastern US showing range and abundance.

Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)

LEAVES:
Simple
Alternate

FLOWER:
Spring/Summer
Rays: Yellow
Disc: Maroon
Disc flowers bisexual & fertile/ Ray flowers sterile
Inferior ovary

FRUIT:
Spring/Summer
Achene

 

TO LEARN MORE about this plant, look it up in a good book!



 


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