Publication: Euphorb. Iles Austr. Afr. 80 1921
Description
Euphorbia mangokyensis is a spiny succulent shrub similar to both Euphorbia rossii and Euphorbia brachyphylla, but smaller with subterranean, napiform tap root and apparently deciduous.
Leaves: Ovate, 1.5-2 cm long, 1 cm wide, margins undulate, pubescent, petiolate.
Stipular spines: Basally flattened, accompanied by prickles.
Inflorescences: Capitate dichasia with several cyathia.
Origin and Habitat
South-west Madagascar, Mangoky river valley
Habitat and ecology: Euphorbia mangokyensis is found on gneiss and cipolin limestone in xerophytic bush.
Bibliography
Major references and further lectures
1)Werner Rauh, Herman Schwartz “Succulent and xerophytic plants of Madagascar”, Volume 2 Strawberry Press, 1998