The genus Euphorbia, belonging to the family Euphorbiaceae, is unique among flowering plants due to the peculiar highly evolved inflorescence called cyathium, which is found only in this genus and a few of its allied genera. For India, the only treatise available now for the genus covering the entire country was published about 120 years ago by J.D. Hooker for Flora of British India (Vol. 5, 1887). Since then except for some regional works, none has attempted a ...
