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
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Check out EDDMapS.org to see where this has been reported.
Read more about Carduus at Vascular Plants of North Carolina.
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.
)
JK Marlow jkm0507h_11
July Pocahontas County WV
Roadside
Flower heads short-pedunculate and erect in flower, per Vascular Flora of the Carolinas.
)
JK Marlow jkm0507h_16
July Pocahontas County WV
Roadside
Plants very spiny, stem tough, per Weakley's Flora.
)
JK Marlow jkm0507h_19b
July Pocahontas County WV
Roadside
Involucres arachnose. Outer involucral bracts erect, inner bracts soft, per Vascular Flora of the Carolinas.
COMPARE
involucral bracts of Thistles
)
Steve Dewey, Utah State University, Bugwood.org bug_1459784
Month Unknown
)
Joseph M. DiTomaso, University of California - Davis, Bugwood.org bug_5374305
Month Unknown
Stems leafy to near apex, per Vascular Flora of the Carolinas.
)
Joseph M. DiTomaso, University of California - Davis, Bugwood.org bug_5374306
Month Unknown
)
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__
2122
Forb
Biennial
Non-native: Eurasia
Habitat: Disturbed areas, pastures, per Weakley's Flora
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.)
This plant is causing problems in natural areas outside its native range, according to authorities such as:
- Forest Health Assessment & Applied Sciences Team: New Invaders of the Southeast
- Kentucky Exotic Pest Plant Council, 2013
- Mid-Atlantic Exotic Pest Plant Council
- Tennessee Exotic Pest Plant Council, 2009
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!