Centaurea nigrescens, the Tyrol knapweed, short-fringed knapweed or Tyrol thistle, is a perennial plant in the genus Centaurea that grows natively in Central and South-eastern Europe (from Southern Germany and Northern Italy to Romania and Bulgaria). It has also been introduced and is now a noxious weed in the Northern United States, Canada, and Southern Australia.[1] It has purple flowers and it flowers in the summer (June to September).

Centaurea nigrescens
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Centaurea
Species:
C. nigrescens
Binomial name
Centaurea nigrescens
Willd.
Synonyms

Centaurea dubia Suter

References

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  1. ^ Formisano, Carmen; Senatore, Felice; Bancheva, Svetlana; Bruno, Maurizio; Maggio, Antonella; Rosselli, Sergio (February 2010). "Volatile Components of Aerial Parts of Centaurea nigrescens and C. stenolepis Growing Wild in the Balkans". Natural Product Communications. 5 (2): 273–278. doi:10.1177/1934578X1000500222. ISSN 1934-578X. PMID 20334143. S2CID 33985281.