ISI 2006-18. Euphorbia aureoviridiflora (Rauh) Rauh

Originally described as a variety of E. neohumbertii (ISI 2006-20), this shares that species’ five-sided stems beautifully ornamented with the scars left by the leaves, though in the case of E. aureoviridiflora these soon merge with the light colored bark. The latter also differs in its branched, shrubby habit (rather than solitary and columnar) and in its pale yellowish beak-like inflorescences (rather than orange as in E. neohumbertii). The leaves of both species have deep green paddle-shaped blades that are efficient light gatherers, which helps explain the plant’s shade tolerance, making them suitable candidates for a windowsill should greenhouse space be unavailable. HBG 94008, from controlled pollination of Röösli & Hoffmann 3299, plants collected Nov. 17, 1999, at Montagne des Français, Diego Suarez, Madagascar. $7.50.

Photo © 2006 by John N. Trager. Images may not be used elsewhere without permission.

Published in the Cactus and Succulent Journal, Vol. 78 (2), March - April, 2006