Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Rudbeckia maxima
FAMILY
Asteraceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Rudbeckia maxima
FAMILY
Asteraceae
SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Rudbeckia maxima
SYNONYMOUS WITH Flora of North America north of Mexico, vol. 19-20-21 (2006)
Rudbeckia maxima
SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)
Rudbeckia maxima
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.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_ruma3_001_lvd
)
USDA-NRCS PLANTS Database / USDA Wetland flora: Field office illustrated guide pnd_ruma3_007_lvd
)
JK Marlow jkm0406b_02
June York County SC
Daniel Stowe Botanical Garden
Disc 4-8cm at maturity, per Wildflowers of the Eastern United States (Duncan & Duncan, 1999).
)
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 OF THE SOUTHEASTERN US (4/14/23):
Rudbeckia maxima
FAMILY
Asteraceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Rudbeckia maxima
FAMILY
Asteraceae
SYNONYMOUS WITH
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Rudbeckia maxima
SYNONYMOUS WITH
Flora of North America north of Mexico, vol. 19-20-21
Rudbeckia maxima
SYNONYMOUS WITH
Floristic Synthesis of North America (Kartesz, 1999)
Rudbeckia maxima
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Rudbeckia maxima
1278
Forb
Perennial
Habitat: Pinelands, prairies, low areas in silty or sandy soils, also (eastwards) in disturbed areas (persistent from horticultural use), per Weakley's Flora
Native: south central US
Waif(s)
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
LEAVES:
Simple
Alternate
FLOWER:
Spring/Summer
Rays: Yellow
Disc: Maroon
Inferior ovary
Disc flowers bisexual & fertile/ Ray flowers sterile
FRUIT:
Spring/Summer
Achene
TO LEARN MORE about this plant, look it up in a good book!
- Gardening with Native Plants of the South (Wasowski & Wasowski, 1994, 2020) p164
- Wildflowers of the Eastern United States (Duncan & Duncan, 1999) p121
If a search such as "Carex leptalea var. leptalea" doesn't deliver the results you want, try "Carex leptalea".
Or, to minimize chances of a misspelling, try just "Carex le".
Less is more: If "pencil flower" doesn't deliver the results you want, try "pencil".