Di Mana Gulma
Amerika Utara | Weed Science Society of America (2010) - Composite List of Weeds |
Eropa | NOBANIS - European Network on Invasive Alien Species |
Kerajaan Inggris & Irlandia | NOBANIS - European Network on Invasive Alien Species |
Laut Mediteranea | Plants of the World Online |
Afrika Selatan | T. Rebelo & C.L. Ramjukadh (2012) - SANBI |
Australia | Australian Government - Weeds in Australia |
Selandia Baru | Auckland Regional Council |