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 heterophyllus   FAMILY Asteraceae   Go to FSUS key



SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Helianthus heterophyllus   FAMILY Asteraceae

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

Helianthus heterophyllus

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-65-006:

Helianthus heterophyllus   FAMILY Asteraceae

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

Helianthus heterophyllus

 

COMMON NAME:
Savanna Sunflower, Variable-leaf Sunflower


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

image of Helianthus heterophyllus, Savanna Sunflower, Variable-leaf Sunflower

Will Stuart    wil_heterophy220925_3366

September    Craven    NC

Croatan National Forest

Erect nearly leafless stems topped by dark-centered flower heads that can be 4" wide, per Atlantic Coastal Plain Wildflowers (Nelson, 2006).

image of Helianthus heterophyllus, Savanna Sunflower, Variable-leaf Sunflower

Will Stuart    wil_heterophy220925_3369

September    Craven    NC

Croatan National Forest

Most leaves less than 6" long and borne in a persistent tuft at the base of the plant, per Atlantic Coastal Plain Wildflowers (Nelson, 2006).

image of Helianthus heterophyllus, Savanna Sunflower, Variable-leaf Sunflower

Will Stuart    wil_heterophyl220925_3361

September    Craven    NC

Croatan National Forest

A few leaves may extend a short ways up the stem; all leaves rough to the touch (sandpaperish), per Atlantic Coastal Plain Wildflowers (Nelson, 2006).

image of Helianthus heterophyllus, Savanna Sunflower, Variable-leaf Sunflower

Will Stuart    wil_heterophyl220925_3372

September    Craven    NC

Croatan National Forest

Ray flowers bright yellow & angled upwards forming a bowl. Disc flowers numerous & reddish-brown. — Will Stuart

image of Helianthus heterophyllus, Savanna Sunflower, Variable-leaf Sunflower

Will Stuart    wil_heterophyl220925_3384

September    Craven    NC

Croatan National Forest

Note the small, paired stem leaves beneath the flowers. — Will Stuart

 

 

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

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Helianthus heterophyllus   FAMILY Asteraceae

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

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-65-006:
Helianthus heterophyllus   FAMILY Asteraceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Helianthus heterophyllus

 

Find by SCIENTIFIC NAME:

3160

Forb
Perennial

Habitat: Wet pine savannas, seepage bogs, per Weakley's Flora

Native to the Carolinas & Georgia

Uncommon (rare in GA)

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: Purplish-red
Inferior ovary
Disc flowers bisexual & fertile/ Ray flowers pistillate but sterile

FRUIT:
Summer/Fall
Brown
Achene

 

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



 


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