OF THE CAROLINAS & GEORGIA

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

WEAKLEY'S FLORA (11/30/12):
Carduus acanthoides ssp. acanthoides   FAMILY Asteraceae__   NEW! Click to go to FSUS key


INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Carduus acanthoides   FAMILY Asteraceae__

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

 

COMMON NAME:
Plumeless Thistle, Spiny Plumeless-thistle


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

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

JK Marlow    jkm0507h_11

July    Pocahontas County    WV

Roadside

Flower heads short-pedunculate and erect in flower, per Vascular Flora of the Carolinas.

image of Carduus acanthoides ssp. acanthoides, Plumeless Thistle, Spiny Plumeless-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

JK Marlow    jkm0507h_19b

July    Pocahontas County    WV

Roadside

Involucres arachnose. Outer involucral bracts erect, inner bracts soft, per Vascular Flora of the Carolinas.


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

Steve Dewey, Utah State University, Bugwood.org    bug_1459784

Month Unknown        

image of Carduus acanthoides ssp. acanthoides, Plumeless Thistle, Spiny Plumeless-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.

image of Carduus acanthoides ssp. acanthoides, Plumeless Thistle, Spiny Plumeless-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

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

Month Unknown        

 

WEAKLEY'S FLORA (11/30/12):
Carduus acanthoides ssp. acanthoides   FAMILY Asteraceae__

INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Carduus acanthoides   FAMILY Asteraceae__

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

 

Find by SCIENTIFIC NAME:

2122

Forb
Biennial

Non-native: Eurasia

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

map
NEW! Click here to see a map from Weakley's Flora of the Southeastern US showing range and abundance.

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
Bisexual
Inferior ovary

FRUIT:
Summer/Fall
Achene

 

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



 


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