Native & Naturalized Plants of the Carolinas & Georgia


299

Forb
Biennial/Short-lived perennial

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

Common (rare in GA & SC)

Look for it on roadsides, disturbed areas, per Weakley's Flora

map
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INVASIVE

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

Kentucky Exotic Pest Plant Council, 2013
SC Exotic Pest Plant Council, 2014
Tennessee Exotic Pest Plant Council, 2009
US Forest Service Southern Research Station
Virginia Department of Conservation and Recreation, 2014

 

LEAVES:
Simple - pinnatifid
Basal rosette & alternate

FLOWER:
Summer/Fall
Disc: Pinkish-purple
Rays: Absent
Bisexual, fertile (peripheral florets sterile)
Inferior ovary

FRUIT:
Summer/Fall
Blackish-brown
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):
Centaurea stoebe ssp. micranthos   FAMILY Asteraceae__

(?) PLANTS NATIONAL DATABASE:
Centaurea stoebe ssp. micranthos   FAMILY Asteraceae__

SYNONYMOUS WITH (MISAPPLIED) VASCULAR FLORA OF THE CAROLINAS (1968) 179-24-003:
Centaurea maculosa   FAMILY Asteraceae__

SYNONYMOUS WITH Synthesis of the North American Flora (Kartesz, 1999)
Centaurea biebersteinii

 

COMMON NAME:
Spotted Knapweed, Bushy Knapweed