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 
| |
| 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 | |
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Centaurea dubia Suter | |
References
edit- ^ 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.
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