Euphorbia viguieri

Euphorbia viguieri is an unusual and rare specimen that is native to Madagascar. Euphorbia plants have a milky latex sap that may be toxic to some individuals. Euphorbia viguieri has spines and small deciduous leaves. It is difficult to find in cultivation.

Source: eHow.com http://www.ehow.com/info_8551351_euphorbia-viguieri.html#ixzz2M8ORxmEz