OF THE CAROLINAS & GEORGIA

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

WEAKLEY'S FLORA (4/24/22):
Helianthus maximilianii   FAMILY Asteraceae   NEW! Click to go to FSUS key


SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT) PLANTS NATIONAL DATABASE:
Helianthus maximiliani   FAMILY Asteraceae

SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT) Flora of North America
Helianthus maximiliani

SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT) VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-65-014:
Helianthus maximiliani   FAMILY Asteraceae

SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT) Manual of the Southeastern Flora (Small, 1933, 1938)
Helianthus maximiliani

 

COMMON NAME:
Maximilian Sunflower


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

image of Helianthus maximilianii, Maximilian Sunflower

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_hema2_001_lvd

        

image of Helianthus maximilianii, Maximilian Sunflower

Richard and Teresa Ware    rtw_h_maximilianii

August        

The 10-25 ray flowers each 1.0-1.6" long. The disc yellow, 0.6-1.0" wide, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.

image of Helianthus maximilianii, Maximilian Sunflower

Richard and Teresa Ware    rtw_h_maximilianii_2

August        

Perennial 2-10' tall. The inflorescence tends to be long, with several heads, per Wildflowers of Tennessee.

image of Helianthus maximilianii, Maximilian Sunflower

Richard and Teresa Ware    rtw_h_maximilianii_3

August        

image of Helianthus maximilianii, Maximilian Sunflower

Richard and Teresa Ware    rtw_h_maximilianii_3b

August        

Leaves conduplicate & entire, usually with only a single prominent main vein, per Weakley's Flora (2012).

 

WEAKLEY'S FLORA (4/24/22):
Helianthus maximilianii   FAMILY Asteraceae

SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT) PLANTS NATIONAL DATABASE:
Helianthus maximiliani   FAMILY Asteraceae

SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT) Flora of North America
Helianthus maximiliani

SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT) VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-65-014:
Helianthus maximiliani   FAMILY Asteraceae

SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT) Manual of the Southeastern Flora (Small, 1933, 1938)
Helianthus maximiliani

 

Find by SCIENTIFIC NAME:

3638

Forb
Perennial

Native: west of the Carolinas & Georgia

Uncommon (rare in Coastal Plain) (rare in GA Piedmont)

Habitat: Moist roadsides and disturbed areas, 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, or the lowermost opposite

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

FRUIT:
Summer/Fall
Brown to black
Achene

 

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



 


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