Gdzie Chwast
Ameryka Północna | US Department of Agriculture |
Ameryka Południowa | Plants of the World Online |
Europa | F. Verloove (2016) - Manual of the Alien Plants of Belgium |
Zjednoczone Królestwo i Irlandia | Online Atlas of the British & Irish Flora |
Śródziemnomorski | Plants of the World Online |
Australia | R.P. Randall (2007) - The Introduced Flora of Australia and its Weed Status |
Nowa Zelandia | C. Howell (2008) - Consolidated List of Environmental Weeds in NZ |