Centaurea nigra
From RoguesGallery
black knapweed
- Occurrence in Alberta –
- Global Invasive Species Database –
- NatureServe Rank – Low/Insignificant - mostly inhabits disturbed sites and has no reported ecological impacts.
- Haber, Upland –
- Haber, Wetland –
- CWF, Status & Invasive Range –
- Alberta Revegetation Guidelines –
- The Nature Conservancy –
- CBCN –
- AB Weed – prohibited noxious
Remarks
References
Map references
sample: Map data for T. ramosissima