From: The allelopathic, adhesive, hydrophobic and toxic latex of Euphorbia species is the cause of fairy circles investigated at several locations in Namibia
Site
Site type
R-value
Giribes
Fairy circles
1.5
Mixed
1.4
Palmwag
Mixeda
1.1
E. damarana
Brandberg
1.3
1.2
Garub
E. gummifera