This member of the Euphorbiaceae family was described by Peter René Oscar Bally 1959. It is only found in Kenya, where it grows in a well drained soil with some water and lots of sun. The stem can grow to five centimetres thick and 25 centimetres height. The flowers are green.

The genera name from the Greek monos; 'one' and -aden; 'gland', referring to the solitary gland. The species name after the area it is found in; Yatta; Kenya.