Euphorbia bojeri
Description:
4 inch size are about 7 years old. The 6" are 15 years old and the 2 gallons are at least 20 years old.
E. bojeri is a much branched shrub with cylindrical branches and remote thorns thickened at the base, leaves leathery, shiny, oval pointed, narrowing to a petiole; cyathia in slightly branched, long stalked cymes with shiny red or sometimes yellow cyathophylls.