nSaw-wort(Bot) Any plant of the composite genus Serratula; -- so named from the serrated leaves of most of the species.
Century Dictionary and Cyclopedia
nsaw-wortA plant of the Old World genus Serratula, especially S. tinctoria, whose foliage yields a yellow dye. The name is derived from the sharp serration of the leaves. Species of Saussurea are also so called.