Native & Naturalized Plants of the Carolinas & Georgia


64

Forb
Annual

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

Common

Look for it in roadsides, gardens, disturbed soils, thin soils on rock outcrops, per Weakley's Flora

map
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full sun ...Variable

LEAVES:
Simple: Dissected
Lower opposite, upper alternate

FLOWER:
Summer/Fall
Disc: Greenish
Rays: Absent
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):
Ambrosia artemisiifolia   FAMILY Asteraceae__

GREATER THAN PLANTS NATIONAL DATABASE:
Ambrosia artemisiifolia +   FAMILY Asteraceae__

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (1968) 179-02-003:
Ambrosia artemisiifolia   FAMILY Asteraceae__

 

COMMON NAME:
Annual Ragweed, Common Ragweed


Click or hover over the thumbnails to see larger pictures.

image of Ambrosia artemisiifolia

JK Marlow    jkm0405zb_25

May    Greenville County    SC

Chandler Heritage Preserve

Leaves deeply bipinnately dissected, per Guide to the Wildflowers of SC.

image of Ambrosia artemisiifolia

JK Marlow    jkm140623_225

June    Greenville County    SC

Swamp Rabbit Trail

image of Ambrosia artemisiifolia

JK Marlow    jkm150724_514

July    Pickens County    SC

Annual with taproot and freely branched stems, per Vascular Flora of the Carolinas.

image of Ambrosia artemisiifolia

JK Marlow    jkm0308i_08

August    Alamance County    NC

image of Ambrosia artemisiifolia

Roxanna Martin    rlm82810_82

August    Spartanburg County    SC

Female flowers borne in clusters from the upper leaf axils, per Wildflowers of Tennessee.

image of Ambrosia artemisiifolia

Gill Newberry    gn09_a_artemes_leaf

September        

The specific epithet "artemisiifolia" means leaves resembling Artemisia.


click here to see other plants that look similar to this COMPARE leaves of Mugwort, Ragweed and Spanish Needles

image of Ambrosia artemisiifolia

Roxanna Martin    rlm9110_57

September    Spartanburg County    SC

Male flowers in spikelike clusters that terminate stem and upper branches, per Wildflowers of Tennessee.

image of Ambrosia artemisiifolia

Roxanna Martin    rlm91811_54

September    Spartanburg County    SC

Female heads roundish, clustered in upper leaf axils below male spike, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.

image of Ambrosia artemisiifolia

Roxanna Martin    rlm91811_56

September    Spartanburg County    SC

image of Ambrosia artemisiifolia

Roxanna Martin    rlm9310_80

September    Spartanburg County    SC

Male heads saucer-shaped, about 0.1" wide, disk flowers 5-lobed, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.

image of Ambrosia artemisiifolia

JK Marlow    jkm151006_329

October    Greenville County    SC

Swamp Rabbit Trail

image of Ambrosia artemisiifolia

JK Marlow    jkm151006_329b

October    Greenville County    SC

Swamp Rabbit Trail

image of Ambrosia artemisiifolia

JK Marlow    jkm151006_331

October    Greenville County    SC

Swamp Rabbit Trail