OF THE CAROLINAS & GEORGIA

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

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Helianthus longifolius   FAMILY Asteraceae   Go to FSUS key



SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Helianthus longifolius   FAMILY Asteraceae

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 19-20-21 (2006)

Helianthus longifolius

INCLUDING & INCLUDED WITHIN (MISIDENTIFICATION) VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-65-008:

Helianthus longifolius   FAMILY Asteraceae

 

COMMON NAME:
Longleaf Sunflower


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

image of Helianthus longifolius, Longleaf Sunflower

JK Marlow    jkm110416_753

April    Etowah County    AL

image of Helianthus longifolius, Longleaf Sunflower

Richard and Teresa Ware    rtw_h_longifolius

September        

Leaves 10-20x as long as wide, basally disposed, glabrous, per Weakley's Flora.

image of Helianthus longifolius, Longleaf Sunflower

Richard and Teresa Ware    rtw_h_longifolius_4b

September        

8-13 ray florets. Disc florets' lobes yellow; anthers dark, appendages dark, per Flora of North America.

image of Helianthus longifolius, Longleaf Sunflower

Richard and Teresa Ware    rtw_h_longifolius_lrc

September        

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Helianthus longifolius   FAMILY Asteraceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Helianthus longifolius   FAMILY Asteraceae

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 19-20-21
Helianthus longifolius

INCLUDING & INCLUDED WITHIN (MISIDENTIFICATION) VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-65-008:
Helianthus longifolius   FAMILY Asteraceae

 

Find by SCIENTIFIC NAME:

3445

Forb
Perennial

Habitat: Sandstone and granite glades and woodlands, loamy to xeric longleaf pine sandhills, per Weakley's Flora

Native to Georgia

Rare

map
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.

LEAVES:
Simple
Basal & opposite (reduced upward)

FLOWER:
Summer/Fall
Rays: Yellow
Disc: Yellow
Inferior ovary
Disc flowers bisexual & fertile/ Ray flowers pistillate but sterile

FRUIT:
Summer/Fall
Achene

 

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



 


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