Crozophora

(kro-zof'o-rah.) (Bot.) A gen. of the O. Euphorbiaceæ, consisting of annual or perennial, low growing plants, having all their parts densely clothed with starry hairs or shield-shaped scales. C. tinct or i a is cultivated in S. France for the sake of a purplish dye, called Tournesol, which is obtained from it, and is exported to Holland, where it is used as a coloring-matter for cheese, confectionery, wine, . The dye must not be confounded with the litmus of our chemists. [s. 248]