Kur Nezāle
Ziemeļamerika | US Department of Agriculture |
Karību | Plants of the World Online |
Centrālamerika | J. Cardenas & L.E. Coulston (1967) |
Dienvidāzija | Flora of Pakistan (efloras.org) |
Austrālija | R.P. Randall (2007) - The Introduced Flora of Australia and its Weed Status |