Yellowwort \Yel"low*wort`\, n. (Bot.) A European yellow-flowered, gentianaceous ({Chlora perfoliata}). The whole plant is intensely bitter, and is sometimes used as a tonic, and also in dyeing yellow. [1913 Webster]
Centaury \Cen"tau*ry\ (s[e^]n"t[add]*r[y^]), n. [L. centaureum and centauria, Gr. kentay`rion, kentay`reion, and kentayri`h, fr. the Centaur Chiron.] (Bot.) A gentianaceous plant not fully identified. The name is usually given to the {Eryther[ae]a Centaurium} and the {Chlora perfoliata} of Europe, but is also extended to the whole genus {Sabbatia}, and even to the unrelated {Centaurea}. [1913 Webster]