from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of numerous cosmopolitan, deciduous or evergreen shrubs or trees of the genus Zanthoxylum, having aromatic bark and alternate, mostly pinnate leaves.
  • n. See Hercules' club.

from the GNU version of the Collaborative International Dictionary of English

  • A prickly shrub (Xanthoxylum Americanum) with yellowish flowers appearing with the leaves; also called toothache tree. All parts of the plant are pungent and aromatic. The southern species is Xanthoxylum Carolinianum.
  • Hercules'-club, also called the Angelica tree.
  • n. are shrubs of different families, somewhat resembling the true ashes in their foliage.

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

  • n. any of a number of trees or shrubs of the genus Zanthoxylum having spiny branches
  • n. Australian tree having alternate simple leaves (when young they are pinnate with prickly toothed margins) and slender axillary spikes of white flowers


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