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):
Vernonia acaulis   FAMILY Asteraceae__   Go to FSUS key



SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Vernonia acaulis   FAMILY Asteraceae__

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

Vernonia acaulis

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-27-001:

Vernonia acaulis   FAMILY Asteraceae__

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

Vernonia acaulis

 

COMMON NAME:
Stemless Ironweed, Carolina Ironweed, Flatwoods Ironweed


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

image of Vernonia acaulis, Stemless Ironweed, Carolina Ironweed, Flatwoods Ironweed

JK Marlow    jkm100624_053

June    Greenville County    SC

Leaves tend to have a more acute apex than those of Elephantopus, per Weakley's Flora.

image of Vernonia acaulis, Stemless Ironweed, Carolina Ironweed, Flatwoods Ironweed

JK Marlow    jkm100624_059

June    Greenville County    SC

image of Vernonia acaulis, Stemless Ironweed, Carolina Ironweed, Flatwoods Ironweed

JK Marlow    jkm100624_061

June    Greenville County    SC

Involucres 5-10mm long; outer bracts acuminate to caudate, inner acute, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Vernonia acaulis, Stemless Ironweed, Carolina Ironweed, Flatwoods Ironweed

JK Marlow    jkm100624_064

June    Greenville County    SC

image of Vernonia acaulis, Stemless Ironweed, Carolina Ironweed, Flatwoods Ironweed

JK Marlow    jkm131027_024

October    Saluda County    SC

Sumter National Forest: Edgefield Ranger District

Basal leaves 3-8, elliptic, lanceolate or oblancolate, 1-3dm long, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Vernonia acaulis, Stemless Ironweed, Carolina Ironweed, Flatwoods Ironweed

JK Marlow    jkm131027_028b

October    Saluda County    SC

Sumter National Forest: Edgefield Ranger District

Heads discoid. Pappus whitish to stramineous [straw-like], per Flora of North America.

image of Vernonia acaulis, Stemless Ironweed, Carolina Ironweed, Flatwoods Ironweed

JK Marlow    jkm131027_029c

October    Saluda County    SC

Sumter National Forest: Edgefield Ranger District

Phyllaries 40-60 in 5-6 series, per Flora of North America.

image of Vernonia acaulis, Stemless Ironweed, Carolina Ironweed, Flatwoods Ironweed

JK Marlow    jkm151017_473474

October    Columbia County    GA

Flowers at the ends of branches in a flat-topped cluster, per Wildflowers of the Sandhills Region (Sorrie, 2011).

image of Vernonia acaulis, Stemless Ironweed, Carolina Ironweed, Flatwoods Ironweed

JK Marlow    jkm151017_477

October    Columbia County    GA

Stem leaves small, 2-7, linear, oblancolate to elliptic, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Vernonia acaulis, Stemless Ironweed, Carolina Ironweed, Flatwoods Ironweed

JK Marlow    jkm081102_062

November    Columbia County    GA

image of Vernonia acaulis, Stemless Ironweed, Carolina Ironweed, Flatwoods Ironweed

JK Marlow    jkm081102_074

November    Columbia County    GA

Flowers of the genus Vernonia are all discoid, all bisexual, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Vernonia acaulis   FAMILY Asteraceae__

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Vernonia acaulis   FAMILY Asteraceae__

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 19-20-21
Vernonia acaulis

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-27-001:
Vernonia acaulis   FAMILY Asteraceae__

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

 

Find by SCIENTIFIC NAME:

2754

Forb
Perennial

Habitat: Longleaf pine flatwoods, moist ecotones, and moister sandhill situations, in the Piedmont in dry rocky woodlands, hardpan woodlands, bluffs, and barrens, per Weakley's Flora

Native to the Carolinas & Georgia

Common in Carolinas, rare in GA

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

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
Basal (large) & alternate (small)

FLOWER:
Summer
Disc: Purplish-blue
Rays: Absent
Inferior ovary
Bisexual

FRUIT:
Summer/Fall
Achene

 

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



 


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