Euphorbia inermis f. monstrous variegata is a very particular plant and much sought after by collectors, which has strange shapes (for this the denomination of 'monstrous'), atypical for the normal shape. Its variegation, in addition, makes it further rare and unique because the variegations are never equal in the plants, each plant is different from the others. In the classical form, E. inermis is a medium-large succulent; with a central stem of green colour, from which come out numerous ramifications similar to the hair of Medusa, reason for which it is recognized with the name "Head of Medusa". During the flowering period, spring-summer, it gives us small cream white flowers.