Euphorbia stenoclada
Euphorbia stenoclada is the most thorny species of all the Madagascan Euphorbia species. The apices of all the branches are modified into thorns, at least in the juvenile stages. There are two subspecies, E. stenoclada ssp. stenoclada, widespread in southern and south-western Madagascar, and E. stenoclada ssp. ambatofinandrahana. Euphorbia stenoclada ssp. ambatofinandrahana (Leandri) Cremers (Synonym…