Euphorbia trigona	Indicates sun requirement      Full sun      Half sun      Semi-shade      Shade   Indicates water requirement          High water requirement.     Water every 1-2 days.          Medium water requirement.     Water every 3-7 days.          Low water requirement.     Water every 7-14 days.
Description Native to Namibia, this small succulent, cactus-like shrub reaches 1-1.8m (3-6ft) and often finds use as a house plant. It has erect triangular branches that are dark green mottled with white and spines along its ridges. An attractive cultivar with red bracts between its spines is 'Red Devil'.
Growing Slow growing. Adapts to most soils. (see Euphorbia)