Representative Images

8 Images Send these Selected Images to Your Light Box

1350054 black knapweed Centaurea nigra Plant(s) Cindy Roche	5437858 black knapweed Centaurea nigra Plant(s) Bruce Ackley	5437857 black knapweed Centaurea nigra Plant(s) Bruce Ackley	5374350 black knapweed Centaurea nigra Seedling(s) Joseph M. DiTomaso
1350055 black knapweed Centaurea nigra Flower(s) Cindy Roche	5374349 black knapweed Centaurea nigra Flower(s) Joseph M. DiTomaso	5437855 black knapweed Centaurea nigra Seed(s) Bruce Ackley	5437856 black knapweed Centaurea nigra Seed(s) Bruce Ackley

Maps

EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org

Alternative content

State Regulated List - This map identifies those states that list this species on their regulated list. For more information, visit Invasive.org

Alternative content

Invasive Listing Sources

Taxonomic Rank

Kingdom: Plantae

Phylum: Magnoliophyta

Class: Magnoliopsida

Subclass: Asteridae

Order: Asterales

Family: Asteraceae

Genus: Centaurea

Synonyms and Other Names

Other Common Names:
black knapweed

References

Common Name Reference:	USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.
Scientific Name Reference:	USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.