North Carolina Wildflowers, Shrubs, & Trees

by Jeffrey S. Pippen | Back to Jeff's Plant Page | Jeff's Nature Pages


Asteraceae > Centaurea (knapweed)

Knapweed (Centaurea sp.) knapweed (Centaurea sp.)
Watauga Co., NC
23 July 2006

Introduced from Eurasia, this plant keys out in Weakley's Flora to C. jacea or C. xpratensis, depending on the interpretation of the phyllaries. Neither is yet known from NC. Comments??

Knapweed (Centaurea sp.) knapweed (Centaurea sp.)
Watauga Co., NC
23 July 2006

Leaves were mostly entire but several had widespread, shallow, pointed lobes and/or teeth.

knapweed (Centaurea sp.)
Watauga Co., NC
23 July 2006

Phyllary detail


Annotated habitat and distribution information listed above is from Radford, Ahles, & Bell. 1968. Manual of the Vascular Flora of the Carolinas. UNC Press; and from personal observations and discussions with Will Cook, Harry LeGrand, and Bob Wilbur. Common names from personal experience and supplemented by the following resources USDA plants website, Flora of the Carolinas, Virginia, and Georgia, and NatureServe.


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Created on Aug 12, 2006 | jeffpippen9@gmail.com