Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Centaurea nigrescens
FAMILY
Asteraceae
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 Tyrol Knapweed at Vascular Plants of North Carolina.
INCLUDING
PLANTS NATIONAL DATABASE:
Centaurea nigrescens
FAMILY
Asteraceae
SYNONYMOUS WITH Flora of North America
Centaurea nigrescens
INCLUDING PLANTS National Database
Centaurea transalpina
COMMON NAME:
Tyrol Knapweed, Short-fringed Knapweed
To see larger pictures, click or hover over the thumbnails.
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: Northeastern US (Clemants & Gracie, 2006).
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: Northeastern US (Clemants & Gracie, 2006).
JK Marlow jkm121006_363
October Washington County VA
Virginia Creeper Trail
Heads relatively narrow, the involucres black and green, per Weakley's Flora.
COMPARE
involucral bracts of Centaurea
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.
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: Northeastern US (Clemants & Gracie, 2006).
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Centaurea nigrescens
FAMILY
Asteraceae
INCLUDING
PLANTS NATIONAL DATABASE:
Centaurea nigrescens
FAMILY
Asteraceae
SYNONYMOUS WITH
Flora of North America
Centaurea nigrescens
INCLUDING
PLANTS National Database
Centaurea transalpina