Native & Naturalized Plants of the Carolinas & Georgia


3093

Forb
Annual

Native to the Carolinas & Georgia

Documented growing wild in GA NC SC

Common

Look for it on dunes, brackish marsh edges, coastal sand flats, sand prairies, old fields, disturbed areas, barrens and glades, per Weakley's Flora

map
To see a detailed map, click here

 

LEAVES:
Simple
Alternate (basal usually withered by flowering)

FLOWER:
Spring/Summer/Fall
Rays: White/Lavender (few, 1-2mm long)
Disc: Yellow/Yellowish
Disc flowers bisexual/ Ray flowers pistillate
Inferior ovary

FRUIT:
Spring/Summer/Fall
Yellowish
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 (2/8/20):
Erigeron pusillus   FAMILY Asteraceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Conyza canadensis var. pusilla   FAMILY Asteraceae

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-44-008b:
Erigeron canadensis var. pusillus   FAMILY Asteraceae

SYNONYMOUS WITH Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Conyza canadensis var. pusilla

SYNONYMOUS WITH Gray's Manual of Botany (Fernald, 1950)
Erigeron pusillus

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

 

COMMON NAME:
Southern Horseweed


Click or hover over the thumbnails to see larger pictures.

image of Erigeron pusillus, Southern Horseweed

JK Marlow    jkm190604_8928

June    Greenville County    SC

Note the cilia at leaf bases.

image of Erigeron pusillus, Southern Horseweed

JK Marlow    jkm150822_822

August    Pickens County    SC

image of Erigeron pusillus, Southern Horseweed

JK Marlow    jkm150822_824

August    Pickens County    SC

image of Erigeron pusillus, Southern Horseweed

JK Marlow    jkm150822_869

August    Pickens County    SC

image of Erigeron pusillus, Southern Horseweed

JK Marlow    jkm150822_869b

August    Pickens County    SC

Stem glabrous or widely scattered appressed hairs; lvs w a few cilia near base, per Weakley's Flora.

image of Erigeron pusillus, Southern Horseweed

JK Marlow    jkm150912_161

September    Pickens County    SC

image of Erigeron pusillus, Southern Horseweed

JK Marlow    jkm150912_163

September    Pickens County    SC

The involucre is 1/8" high, and the whitish rays are narrow, short and erect, per Wildflowers of the Southern Mountains.

image of Erigeron pusillus, Southern Horseweed

JK Marlow    jkm150912_169

September    Pickens County    SC

image of Erigeron pusillus, Southern Horseweed

JK Marlow    jkm150912_169b

September    Pickens County    SC

Phyllaries purple-tipped, per Weakley's Flora (2015).

image of Erigeron pusillus, Southern Horseweed

Terry Holdsclaw    tdh_c_canadensis_pusil_37

September    Lincoln County    NC

image of Erigeron pusillus, Southern Horseweed

Terry Holdsclaw    tdh_c_canadensis_pusil_1

October    Iredell County    NC

The inflorescence is a large open panicle bearing a great many small heads, per Wildflowers of the Southern Mountains.

image of Erigeron pusillus, Southern Horseweed

Terry Holdsclaw    tdh_c_canadensis_pusil_41

October    Iredell County    NC