Euphorbia herbstii, a member of the Euphorbiaceae (spurge) family, is a small tree ranging from 3 to 8 m (10 to 26 ft) tall. The thin, leathery leaves, normally 8 to 19.5 cm (3.1 to 7.7 in) long and 1.8 to 3.8 cm (0.7 to 1.5 in) wide, are narrowly oblong or sometimes more lance-shaped or elliptic....