OF THE CAROLINAS & GEORGIA

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

WEAKLEY'S FLORA (11/30/12):
Centaurea nigrescens   FAMILY Asteraceae


INCLUDING PLANTS NATIONAL DATABASE:
Centaurea nigrescens   FAMILY Asteraceae

INCLUDING PLANTS National Database
Centaurea transalpina

 

COMMON NAME:
Tyrol Knapweed, Short-fringed Knapweed


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

image of Centaurea nigrescens, Tyrol Knapweed, Short-fringed Knapweed

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_cevo2_001_lvd

        

image of Centaurea nigrescens, Tyrol Knapweed, Short-fringed Knapweed

JK Marlow    jkm121006_361

October    Washington County    VA

Virginia Creeper Trail

image of Centaurea nigrescens, Tyrol Knapweed, Short-fringed Knapweed

JK Marlow    jkm121006_361b

October    Washington County    VA

Virginia Creeper Trail

Outer flowers of the heads larger than others, per Wildflowers in the Field and Forest.

image of Centaurea nigrescens, Tyrol Knapweed, Short-fringed Knapweed

JK Marlow    jkm121006_362

October    Washington County    VA

Virginia Creeper Trail

Involucral bracts with a triangular blackish tip, with a fringe, per Wildflowers in the Field and Forest.

image of Centaurea nigrescens, Tyrol Knapweed, Short-fringed Knapweed

JK Marlow    jkm121006_363

October    Washington County    VA

Virginia Creeper Trail

Heads relatively narrow, the involucres black and green, per Weakley's Flora.


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

image of Centaurea nigrescens, Tyrol Knapweed, Short-fringed Knapweed

JK Marlow    jkm121006_366

October    Washington County    VA

Virginia Creeper Trail

image of Centaurea nigrescens, Tyrol Knapweed, Short-fringed Knapweed

JK Marlow    jkm121006_368

October    Washington County    VA

Virginia Creeper Trail

Peripheral florets sterile, expanded & exceeding corollas of fertile florets, per Flora of North America.

image of Centaurea nigrescens, Tyrol Knapweed, Short-fringed Knapweed

JK Marlow    jkm121006_371

October    Washington County    VA

Virginia Creeper Trail

Stem leaves unlobed, less than or equal to 6" long, per Wildflowers in the Field and Forest.

image of Centaurea nigrescens, Tyrol Knapweed, Short-fringed Knapweed

JK Marlow    jkm121006_375

October    Washington County    VA

Virginia Creeper Trail

 

WEAKLEY'S FLORA (11/30/12):
Centaurea nigrescens   FAMILY Asteraceae

INCLUDING PLANTS NATIONAL DATABASE:
Centaurea nigrescens   FAMILY Asteraceae

INCLUDING PLANTS National Database
Centaurea transalpina

 

Search by scientific name:

3526

Forb
Perennial

Non-native: Europe

Documented growing wild in - NC -

Rare in NC (increasing rapidly in VA)

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

map
Click here to see a more detailed map from University of North Carolina at Chapel Hill Herbarium,

or click here to see a map from SERNEC, a consortium of southeastern herbaria.

 

LEAVES:
Simple
Basal & alternate

FLOWER:
Summer/Fall
Disc: Pinkish-purple
Rays: Pinkish-purple
Bisexual, all fertile or peripheral florets sterile
Inferior ovary

FRUIT:
Summer/Fall
Achene

 

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



 


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