Alpine Knapweed
Centaurea nigrescens Willd.
Centaurea nigrescens, known as Alpine Knapweed, is a perennial plant in the Asteraceae family. It is native to Central and South-eastern Europe and has been introduced to regions including the Northern United States, Canada, and Southern Australia, where it is considered a noxious weed. The plant features purple flowers and blooms during the summer. It was first described in 1803 by Willd.
Description
Centaurea nigrescens is a member of the Asteraceae family and is distributed across parts of Europe and has been introduced to North America and Australia. It is recognized for its purple flowers and summer blooming period. The species is native to Central and South-eastern Europe and is now naturalized in several regions where it is classified as an invasive species.
Other common names
Alpine KnapweedShort-Fringe KnapweedShort-Fringe StarthistleShort-Fringed KnapweedTyrol KnapweedVochin KnapweedWocheiner KnapweedBlack knapweedTyrol thistle
Distribution
Newfoundland · British Columbia · Nova Scotia · Ontario · Quebec · Saint Pierre and Miquelon · Belgium · Flemish Region · Walloon Region · France · The Netherlands · Great Britain · DK · Liechtenstein · Czech Republic · Germany · SE · Vermont-US · CZ · DE · AU · NO · SK · CA · conterminous 48 United States · Austria · Bulgaria · California · Connecticut · Delaware
Synonyms
Centaurea denticulataCyanus nigrescensJacea nigrescensCentaurea nigrescens var. nigrescensJacea nigrescens subsp. nigrescensCentaurea subcordataCentaurea schemnitzensisCentaurea kochiiCentaurea trapezuntinaCentaurea brevipappaCentaurea bracteataCentaurea sciaphilaCentaurea dubia subsp. nigrescensCentaurea jacea subsp. nigrescensCentaurea dubia subsp. vochinensisCentaurea tubulosa
