Category:Xanthorhiza

Xan`tho*rhi"za, n. [nl., fr. Gr. xanqo`s yellow + "ri`za root.] (bot.)

Defn: a genus of shrubby ranunculaceous plants of north america, Including only the species xanthorhiza apiifolia, which has roots of A deep yellow color; yellowroot. The bark is intensely bitter, and is Sometimes used as a tonic.