JATROPHA PACHYRRHIZA

This member of the Euphorbiaceae family was given this name by Alan Radcliffe-Smith in 1993. It is found in northern Zambia, growing in a well drained sandy soil with some water and some to lots of sun. The caudex can grow to three centimetres in diameter, ten centimetres long, the entire plant to 20 centimetres in height. The flowers are yellow to pale yellow.

The genera name from the Greek words ἰατρός; iatros, meaning 'physician', and τροφή; trophe meaning 'nutrition', as to medicinal uses. The species name from pacht; "thick" and rhiza; "root". Three centimetres does not sound "thick" to me...