Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Centaurea nigra
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 Black Knapweed at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Centaurea nigra
FAMILY
Asteraceae__
SYNONYMOUS WITH
Flora of North America
Centaurea nigra
COMMON NAME:
Black Knapweed, Spanish-buttons
To see larger pictures, click or hover over the thumbnails.
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USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_ceni2_001_lvd
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Centaurea nigra
FAMILY
Asteraceae__
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Centaurea nigra
FAMILY
Asteraceae__
SYNONYMOUS WITH
Flora of North America
Centaurea nigra
3772
Forb
Perennial
Non-native: Europe
Rare in NC
Habitat: Roadsides, disturbed areas, per Weakley's Flora
Click here to see a map, notes, and images from Weakley's Flora of the Southeastern US.
Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)
LEAVES:
Simple
Basal & alternate
FLOWER:
Summer/Fall
Disc: Pinkish-purple
Rays: Absent
Bisexual, fertile
Inferior ovary
FRUIT:
Summer/Fall
Achene
TO LEARN MORE about this plant, look it up in a good book!
- Invasive Plants, Guide to Identification, Impacts and Control p290
- Wildflowers in the Field and Forest p024