OF THE CAROLINAS & GEORGIA

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

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Carduus acanthoides ssp. acanthoides   FAMILY Asteraceae__   Go to FSUS key



INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Carduus acanthoides   FAMILY Asteraceae__

INCLUDED WITHIN Floristic Synthesis of North America. BONAP (Kartesz, 2021)

Carduus acanthoides

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 19-20-21 (2006)

Carduus acanthoides ssp. acanthoides

INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-25-015:

Carduus acanthoides   FAMILY Asteraceae__

 

COMMON NAME:
Plumeless Thistle, Spiny Plumeless-thistle, Broad-winged Thistle


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

image of Carduus acanthoides ssp. acanthoides, Plumeless Thistle, Spiny Plumeless-thistle, Broad-winged Thistle

JK Marlow    jkm0507h_11

July    Pocahontas County    WV

Roadside

Flower heads short-pedunculate and erect in flower, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Carduus acanthoides ssp. acanthoides, Plumeless Thistle, Spiny Plumeless-thistle, Broad-winged Thistle

JK Marlow    jkm0507h_16

July    Pocahontas County    WV

Roadside

Plants very spiny, stem tough, per Weakley's Flora.

image of Carduus acanthoides ssp. acanthoides, Plumeless Thistle, Spiny Plumeless-thistle, Broad-winged Thistle

JK Marlow    jkm0507h_19b

July    Pocahontas County    WV

Roadside

Involucres arachnose. Outer involucral bracts erect, inner bracts soft, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).


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

image of Carduus acanthoides ssp. acanthoides, Plumeless Thistle, Spiny Plumeless-thistle, Broad-winged Thistle

Steve Dewey, Utah State University, Bugwood.org    bug_1459784

Month Unknown        

image of Carduus acanthoides ssp. acanthoides, Plumeless Thistle, Spiny Plumeless-thistle, Broad-winged Thistle

Joseph M. DiTomaso, University of California - Davis, Bugwood.org    bug_5374305

Month Unknown        

Stems leafy to near apex, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Carduus acanthoides ssp. acanthoides, Plumeless Thistle, Spiny Plumeless-thistle, Broad-winged Thistle

Joseph M. DiTomaso, University of California - Davis, Bugwood.org    bug_5374306

Month Unknown        

image of Carduus acanthoides ssp. acanthoides, Plumeless Thistle, Spiny Plumeless-thistle, Broad-winged Thistle

Bruce Ackley, The Ohio State University, Bugwood.org     bug_5436746

Month Unknown        

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Carduus acanthoides ssp. acanthoides   FAMILY Asteraceae__

INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Carduus acanthoides   FAMILY Asteraceae__

INCLUDED WITHIN Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Carduus acanthoides

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 19-20-21
Carduus acanthoides ssp. acanthoides

INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-25-015:
Carduus acanthoides   FAMILY Asteraceae__

 

Find by SCIENTIFIC NAME:

2122

Forb
Biennial

Habitat: Disturbed areas, pastures, per Weakley's Flora

Non-native: Eurasia

Uncommon in NC Mountains (rare elsewhere in GA-NC-SC)

map
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.

Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)


INVASIVE

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

 

IS THE PLANT "ARMED"?
Leaf margins spiny

LEAVES:
Simple
Alternate

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

FRUIT:
Summer/Fall
Achene

 

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



 


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