Native & Naturalized Plants of the Carolinas & Georgia


65

Forb
Annual

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

Common (rare in Coastal Plain)

Look for it in floodplains, moist pastures, disturbed ground, per Weakley's Flora

map
To see a detailed map, click here

 

...Moist

LEAVES:
Simple
Lower opposite, upper alternate

FLOWER:
Summer/Fall
Disc: Greenish ?
Rays: Absent
Inferior ovary

FRUIT:
Summer/Fall
Black
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 trifida var. trifida   FAMILY Asteraceae__

LESS THAN PLANTS NATIONAL DATABASE:
Ambrosia trifida var. trifida   FAMILY Asteraceae__

LESS THAN VASCULAR FLORA OF THE CAROLINAS (1968) 179-02-002:
Ambrosia trifida   FAMILY Asteraceae__

 

COMMON NAME:
Giant Ragweed, Great Ragweed


Click or hover over the thumbnails to see larger pictures.

image of Ambrosia trifida var. trifida

JK Marlow    jkm140623_235

June    Greenville County    SC

Swamp Rabbit Trail

image of Ambrosia trifida var. trifida

JK Marlow    s060617_b

June    Greenville County    SC

Roadside/creekside

Leaves 3(5)-lobed or unlobed, tips acuminate, margins evenly serrate, per Vascular Flora of the Carolinas.


click here to see other plants that look similar to this COMPARE leaves of Giant Ragweed and Sassafras

image of Ambrosia trifida var. trifida

Gill Newberry    gn08_a_trifida_inflor

August        

image of Ambrosia trifida var. trifida

Gill Newberry    gn08_a_trifida_mature

August        

image of Ambrosia trifida var. trifida

Gill Newberry    gn08_a_trifida_plant

August        

image of Ambrosia trifida var. trifida

JK Marlow    jkm130823_485

August    Greenville County    SC

Swamp Rabbit Trail

Leaves usually with 3-5 deep lobes, per Newcomb's Wildflower Guide.

image of Ambrosia trifida var. trifida

Keith Bradley    kab_ambrosia_trifida_2776

August    Swain County    NC

Great Smoky Mountains National Park

image of Ambrosia trifida var. trifida

Roxanna Martin    rlm83010_171

August    Spartanburg County    SC

Staminate heads 3-5mm broad, peduncles 2-7mm long, per Vascular Flora of the Carolinas.

image of Ambrosia trifida var. trifida

JK Marlow    jkm0309e_13a

September    Greenville County    SC

Roadside

Just looking at the picture makes you want to sneeze...

image of Ambrosia trifida var. trifida

JK Marlow    jkm0309f_23

September    Greenville County    SC

Roadside

image of Ambrosia trifida var. trifida

JK Marlow    jkm110925_622

September    Greenville County    SC

image of Ambrosia trifida var. trifida

Richard and Teresa Ware    rtw_ambrosia_trifida_2

September        

image of Ambrosia trifida var. trifida

JK Marlow    jkm0310e_06

October    Jackson County    NC

Roadside

image of Ambrosia trifida var. trifida

JK Marlow    jkm0310e_09

October    Jackson County    NC

Roadside

image of Ambrosia trifida var. trifida

JK Marlow    jkm121024_677

October    Cherokee County    NC

Murphy River Walk

image of Ambrosia trifida var. trifida

JK Marlow    jkm121024_684

October    Cherokee County    NC

Murphy River Walk