Xanthoxylum (?), n. [NL., from Gr. xanqos yellow + xylon wood.] (Bot.) A genus of prickly shrubs or small trees, the bark and rots of which are of a deep yellow color; prickly ash.[1913 Webster]
&hand_; The commonest species in the Northern United States is Xanthoxylum Americanum. See Prickly ash, under Prickly.[1913 Webster]