elephant tree

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A distinctive shrub or small tree native to northern Mexico and the farthest southern edge of California and Arizona, Bursera microphylla, having a smooth-skinned, bulging round trunk reminiscent of an elephant's trunk or legs.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun small tree or shrub of the southwestern United States having a spicy odor and odd-pinnate leaves and small clusters of white flowers