hercules'-club

from The Century Dictionary.

• noun Same as angelica-tree.

from the GNU version of the Collaborative International Dictionary of English.

• proper noun (Bot.) A densely spiny ornamental tree (Zanthoxylum clava-herculis) of the rue family, growing in southeast U. S. and West Indies.
• proper noun A small, prickly, deciduous clump-forming tree or shrub (Aralia spinosa) of eastern U.S.; also called Angelica tree and prickly ash.
• proper noun A variety of the common gourd (Lagenaria vulgaris). Its fruit sometimes exceeds five feet in length.

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

• noun small deciduous clump-forming tree or shrub of eastern United States
• noun densely spiny ornamental of southeastern United States and West Indies