Native & Naturalized Plants of the Carolinas & Georgia


645

Forb
Perennial

Native to the Carolinas & Georgia
Documented growing wild in GA NC SC

Common

Look for it in dry soils of rocky, sandy, or clayey woodlands & roadbanks, per Weakley's Flora

map
To see a detailed map, click here

 

full sun partial shade ...Moist ...Dry

LEAVES:
Simple
Basal & opposite (reduced upward)

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

FRUIT:
Summer/Fall
Brown
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 (11/30/12):
Helianthus atrorubens   FAMILY Asteraceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Helianthus atrorubens   FAMILY Asteraceae

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (1968) 179-65-005:
Helianthus atrorubens   FAMILY Asteraceae

 

COMMON NAME:
Purple-disc Sunflower, Hairy Wood Sunflower, Appalachian Sunflower


Click or hover over the thumbnails to see larger pictures.

image of Helianthus atrorubens

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_heat_001_lvd

        

image of Helianthus atrorubens

JK Marlow    jkm060528_002

May    Greenville County    SC

image of Helianthus atrorubens

JK Marlow    jkm120728_984

July    Abbeville County    SC

Parson's Mountain Recreation Area

image of Helianthus atrorubens

JK Marlow    jkm0408j_31

August    Oconee County    SC

Flowers have reddish disk and are at the end of long naked branches, per Wildflowers of the Southern Mountains.

image of Helianthus atrorubens

JK Marlow    jkm0408j_35

August    Oconee County    SC

Noticeably stiff hairs & stiff hairy leaves

image of Helianthus atrorubens

JK Marlow    jkm0508g_26

August    Greenville County    SC

Leaves basally disposed, the few leaves of the lower stem reduced upward, per Weakley's Flora.

image of Helianthus atrorubens

JK Marlow    jkm120812_360

August    Greenville County    SC

Ashmore Heritage Preserve

image of Helianthus atrorubens

JK Marlow    jkm080914_014

September    Greenville County    SC

Ashmore Heritage Preserve

Phyllaries broadly ovate to oblong, apices obtuse to acute, occ. mucronate, per Flora of North America.


click here to see other plants that look similar to this COMPARE involucral bracts of Sunflowers

image of Helianthus atrorubens

JK Marlow    jkm120908_369

September    Greenville County    SC

image of Helianthus atrorubens

JK Marlow    jkm120908_369b

September    Greenville County    SC

Helianthus disc flowers have styles that are bifurcate [two-forked], per www.missouriplants.com

image of Helianthus atrorubens

JK Marlow    jkm180905_4570

September    Greenville County    SC

The disc florets mature from the outside in [centripetally].

image of Helianthus atrorubens

JK Marlow    jkm180906_4605

September    Greenville County    SC

This is the same flower head, one day later.

image of Helianthus atrorubens

Richard and Teresa Ware    rtw_h_atrorubens_2b

September        

Disk flowers red or purple (at least in part), per Weakley's Flora.

image of Helianthus atrorubens

JK Marlow    s040901_b

September    Greenville County    SC

Roadside

Leaves rhombic to triangular-ovate, pubescent and scabrous on both sides, per Vascular Flora of the Carolinas.

image of Helianthus atrorubens

JK Marlow    s040901_c

September    Greenville County    SC

Roadside

Petiole often > 1/3 as long as the blade, broadly winged toward the blade, per Weakley's Flora.