Centaurea nigrescens
Centaurea nigrescens | |
---|---|
Tyrol Thistle | |
Scientific classification | |
Kingdom: | Plantae |
(unranked): | Angiosperms |
(unranked): | Eudicots |
(unranked): | Asterids |
Order: | Asterales |
Family: | Asteraceae |
Tribe: | Cynareae |
Genus: | Centaurea |
Species: | C. nigrescens |
Binomial name | |
Centaurea nigrescens Willd. | |
Synonyms | |
Centaurea dubia Suter |
Centaurea nigrescens (Tyrol knapweed, short-fringed knapweed or Tyrol thistle) is a perennial plant of the star thistle genus that grows natively in Central and South-eastern Europe (from Southern Germany and Northern Italy to Romania and Bulgaria), but has also been introduced and is now a noxious weed in the Northern United States, Canada and Southern Australia. It has purple flowers and it flowers in the summer (June to September).
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