Native & Naturalized Plants of the Carolinas & Georgia


256

Forb
Perennial

Non-native: Europe
Documented growing wild in - NC -

Uncommon (rare in NC Coastal Plain)

Look for it in pastures, disturbed areas, per Weakley's Flora

map
To see a detailed map, click here


INVASIVE

This plant is causing problems in natural areas outside its native range, according to authorities such as:

Alabama Invasive Plant Council, 2012
Kentucky Exotic Pest Plant Council, 2013
SC Exotic Pest Plant Council, 2014
Tennessee Exotic Pest Plant Council, 2009
Virginia Department of Conservation and Recreation, 2014

 

full sun

LEAVES:
Simple: Lobed, unlobed and/or dissected
Alternate

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

FRUIT:
Summer/Fall
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):
Cirsium arvense   FAMILY Asteraceae__

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Cirsium arvense   FAMILY Asteraceae__

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (1968) 179-25-013:
Carduus arvensis   FAMILY Asteraceae__

 

COMMON NAME:
Canada Thistle, Field Thistle


Click or hover over the thumbnails to see larger pictures.

picture of Carduus arvensis, image of Cirsium arvense

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_ciar4_001_lvd

        

picture of Carduus arvensis, image of Cirsium arvense

USDA-NRCS PLANTS Database / USDA Wetland flora: Field office illustrated guide    pnd_ciar4_009_lvd

        

picture of Carduus arvensis, image of Cirsium arvense

JK Marlow    jkm060712_059

July    Tazewell County    VA

Roadside

Numerous small heads (0.5"-0.75") in a branched inflorescence, per Wildflowers of the Southern Mountains.

picture of Carduus arvensis, image of Cirsium arvense

JK Marlow    jkm060712_060

July    Tazewell County    VA

Roadside

picture of Carduus arvensis, image of Cirsium arvense

JK Marlow    jkm060712_063

July    Tazewell County    VA

Roadside

picture of Carduus arvensis, image of Cirsium arvense

JK Marlow    jkm060712_066

July    Tazewell County    VA

Roadside

picture of Carduus arvensis, image of Cirsium arvense

JK Marlow    s060711_a

July    Tazewell County    VA

Roadside

picture of Carduus arvensis, image of Cirsium arvense

Leslie Dietz, Bugwood.org    bug_1929057

Month Unknown        

picture of Carduus arvensis, image of Cirsium arvense

Bruce Ackley, The Ohio State University, Bugwood.org    bug_5436742

Month Unknown        

Lower leaf surfaces are green, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.

picture of Carduus arvensis, image of Cirsium arvense

Leslie J. Mehrhoff, University of Connecticut, Bugwood.org    bug_5447376

Month Unknown        

picture of Carduus arvensis, image of Cirsium arvense

Leslie J. Mehrhoff, University of Connecticut, Bugwood.org    bug_5450403

Month Unknown        

picture of Carduus arvensis, image of Cirsium arvense

Leslie J. Mehrhoff, University of Connecticut, Bugwood.org    bug_5451379

Month Unknown        

Pappus tawny, plumose, per Vascular Flora of the Carolinas.

picture of Carduus arvensis, image of Cirsium arvense

Rob Routledge, Sault College, Bugwood.org    bug_5515718

Month Unknown        

Involucres are smooth or, at most, have minute prickles on outer bracts, per Wildflowers of the Southern Mountains.


click here to see other plants that look similar to this COMPARE involucral bracts of Thistles