Fig. 11From: The allelopathic, adhesive, hydrophobic and toxic latex of Euphorbia species is the cause of fairy circles investigated at several locations in NamibiaAn aerial image (source Ministry of Lands, Namibia) of E. gummifera in 1966 at Garub in southwestern Namibia (a) and the corresponding area in 2011 on Google Earth™ (b). Red circles indicate E. gummifera plants (a) and developing FCs (b)Back to article page