Crucifixion Thorn

Description

Castela emoryi, with the common names crucifixion thorn and Emory's crucifixion-thorn, is a shrub species in the genus Castela of the order Sapindales.Castela emoryi is often less than 1 metre (3.3 ft), and occasionally to grows 4 metres (13 ft) or more.It is ranked on the California Native Plant Society Inventory of Rare and Endangered Plants, as an endangered species within California, and more common elsewhere. It is threatened by solar energy development and military activities within its California range.