Native & Naturalized Plants of the Carolinas & Georgia


3728

Forb
Perennial

Native to Georgia

Documented growing wild in GA - -

Rare (an endemic) (this taxon is a species, not a hybrid; its morphological characteristics alone (with its unique whorled leaves) make hybrid status implausible)

Look for it in seasonally wet to moist calcareous prairies. The species has become a bit popular (niche market) as an ornamental and may be expected to be encountered outside its (admittedly poorly understood) native range, per Weakley's Flora

map
To see a detailed map, click here

 

full sun ...Wet ...Moist ...Variable

LEAVES:
Simple
Usually whorled, sometimes opposite

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

FRUIT:
Summer/Fall
Achene

 

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



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

WEAKLEY'S FLORA (10/20/20):
Helianthus verticillatus   FAMILY Asteraceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Helianthus Ă—verticillatus   FAMILY Asteraceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933)
Helianthus verticillatus

 

COMMON NAME:
Whorled Sunflower


Click or hover over the thumbnails to see larger pictures.

image of Helianthus verticillatus, Whorled Sunflower

Richard and Teresa Ware    rtw_h_verticillat_1

September        

Rays 10-19. Disc florets with yellow lobes, dark anthers & yellow appendages, per Flora of North America.