ಉತ್ತರ ಅಮೇರಿಕ | Weed Science Society of America (2010) - Composite List of Weeds |
ಯುರೋಪ್ | NOBANIS - European Network on Invasive Alien Species |
ಮೆಡಿಟರೇನಿಯನ್ | Plants of the World Online |
ಆಸ್ಟ್ರೇಲಿಯ | R.P. Randall (2007) - The Introduced Flora of Australia and its Weed Status |
