OF THE CAROLINAS & GEORGIA

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

WEAKLEY'S FLORA (4/24/22):
Ambrosia porcheri   FAMILY Asteraceae__


 

COMMON NAME:
Outcrop Ragweed


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

image of Ambrosia porcheri, Outcrop Ragweed

Samantha Tessel    sam071922_9172

July    Greenville County    SC

Chandler Heritage Preserve

image of Ambrosia porcheri, Outcrop Ragweed

Samantha Tessel    sam071922_9172b

July    Greenville County    SC

Chandler Heritage Preserve

image of Ambrosia porcheri, Outcrop Ragweed

Samantha Tessel    sam071922_9172c

July    Greenville County    SC

Chandler Heritage Preserve

image of Ambrosia porcheri, Outcrop Ragweed

Samantha Tessel    sam071922_9173

July    Greenville County    SC

Chandler Heritage Preserve

image of Ambrosia porcheri, Outcrop Ragweed

Samantha Tessel    sam071922_9173b

July    Greenville County    SC

Chandler Heritage Preserve

Terminal leaf lobe 1.0-2.0mm wide; fresh foliage abundantly viscid, w a floral jasmine-like odor, per Weakley's Flora (2022).

image of Ambrosia porcheri, Outcrop Ragweed

Samantha Tessel    sam071922_9173c

July    Greenville County    SC

Chandler Heritage Preserve

Foliage with hairs to 0.3mm long (vs. A. artemisiifolia hairs to 1.8mm long), per Weakley's Flora (2022).

image of Ambrosia porcheri, Outcrop Ragweed

JK Marlow    jkm070920_009

September    Pickens County    SC

Poe Creek State Forest

image of Ambrosia porcheri, Outcrop Ragweed

JK Marlow    jkm070920_012

September    Pickens County    SC

Poe Creek State Forest

image of Ambrosia porcheri, Outcrop Ragweed

JK Marlow    s070920_f

September    Pickens County    SC

Poe Creek State Forest

image of Ambrosia porcheri, Outcrop Ragweed

JK Marlow    s070920_f2

September    Pickens County    SC

Poe Creek State Forest

 

WEAKLEY'S FLORA (4/24/22):
Ambrosia porcheri   FAMILY Asteraceae__

 

Find by scientific name:

2491

Forb
Annual

Native to South Carolina

Documented growing wild in - - SC

Rare, apparently endemic to the Piedmont Blue Ridge escarpment region of nw. SC

Look for it in shallow soil mats on granitic domes, per Weakley's Flora

map
Click here to see a more detailed map from University of North Carolina at Chapel Hill Herbarium,

or click here to see a map from SERNEC, a consortium of southeastern herbaria.

 

LEAVES:
Simple: Dissected
Lower opposite, upper alternate ?

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

FRUIT:
Summer/Fall?
Achene

 

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



 


Find by scientific name: