Spirostachys is a plant genus of the family Euphorbiaceae first described as a genus in 1850. It is native to Africa. Zuloaga, F. O., O. Morrone, M. J. Belgrano, C. Marticorena & E. Marchesi. (eds.) 2008. Catálogo de las plantas vasculares del Cono Sur. Monographs in systematic botany from the Missouri Botanical Garden 107(1–3): i–xcvi, 1–3348.
The genus name is derived from Ancient Greek speiros = spiral, stachys = spike, in allusion to the spiral arrangement of the florets on the flower spike. ...