OF THE CAROLINAS & GEORGIA

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

WEAKLEY'S FLORA (4/24/22):
Vernonia gigantea   FAMILY Asteraceae__   NEW! Click to go to FSUS key


SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Vernonia gigantea ssp. gigantea   FAMILY Asteraceae__

INCLUDED WITHIN Flora of North America
Vernonia gigantea

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-27-006:
Vernonia altissima   FAMILY Asteraceae__

INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Vernonia altissima

INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Vernonia gigantea

 

COMMON NAME:
Tall Ironweed, Common Ironweed, Giant Ironweed


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

image of Vernonia gigantea, Tall Ironweed, Common Ironweed, Giant Ironweed

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_veal7_001_lvd

        

image of Vernonia gigantea, Tall Ironweed, Common Ironweed, Giant Ironweed

Mike Strickland    mst060304_vgigantea

June        

image of Vernonia gigantea, Tall Ironweed, Common Ironweed, Giant Ironweed

Mike Strickland    mst071605_vgigantea

July        

To 7' tall, with lanceolate, toothed leaves that are downy below, per Gardening with the Native Plants of Tennessee.

image of Vernonia gigantea, Tall Ironweed, Common Ironweed, Giant Ironweed

Mike Strickland    mst081504a_vgigantea

August        

Bracts overlapping, appressed, purplish, apex rounded to a short tip, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.

image of Vernonia gigantea, Tall Ironweed, Common Ironweed, Giant Ironweed

Mike Strickland    mst081504b_vgigantea

August        

image of Vernonia gigantea, Tall Ironweed, Common Ironweed, Giant Ironweed

JK Marlow    jkm180924_4907

September    McCormick County    SC

Parks Mill

image of Vernonia gigantea, Tall Ironweed, Common Ironweed, Giant Ironweed

JK Marlow    jkm180924_4908

September    McCormick County    SC

Parks Mill

image of Vernonia gigantea, Tall Ironweed, Common Ironweed, Giant Ironweed

JK Marlow    jkm180924_4909

September    McCormick County    SC

Parks Mill

image of Vernonia gigantea, Tall Ironweed, Common Ironweed, Giant Ironweed

Mike Strickland    mst091403_vgigantea

September        

13-30 flwrs per head (vs. 30-55 in V. noveboracensis), in terminal corymbs, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.

image of Vernonia gigantea, Tall Ironweed, Common Ironweed, Giant Ironweed

Richard and Teresa Ware    rtw_v_gigantea_tall_1

October    Floyd County    GA

image of Vernonia gigantea, Tall Ironweed, Common Ironweed, Giant Ironweed

Richard and Teresa Ware    rtw_v_gigantea_tall_1b

October    Floyd County    GA

image of Vernonia gigantea, Tall Ironweed, Common Ironweed, Giant Ironweed

Richard and Teresa Ware    rtw_v_gigantea_tall_1c

October    Floyd County    GA

image of Vernonia gigantea, Tall Ironweed, Common Ironweed, Giant Ironweed

Mike Strickland    mst110407_vgigantea

November        

Nutlets 3-4mm long; pappus tawny to purple, per Vascular Flora of the Carolinas.

image of Vernonia gigantea, Tall Ironweed, Common Ironweed, Giant Ironweed

Mike Strickland    mst110504_vgigantea

November        

 

WEAKLEY'S FLORA (4/24/22):
Vernonia gigantea   FAMILY Asteraceae__

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Vernonia gigantea ssp. gigantea   FAMILY Asteraceae__

INCLUDED WITHIN Flora of North America
Vernonia gigantea

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-27-006:
Vernonia altissima   FAMILY Asteraceae__

INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Vernonia altissima

INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Vernonia gigantea

 

Find by SCIENTIFIC NAME:

1606

Forb
Perennial

Native to the Carolinas & Georgia

Common in GA Mountains & Piedmont, uncommon in GA Coastal Plain, rare in Carolinas

Habitat: Pastures, bottomlands, streamsides, 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

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

FRUIT:
Summer/Fall
Achene

 

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



 


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