Found 2 items, similar to Rubia tinctorum.
English → English (WordNet) Definition: Rubia tinctorum Rubia tinctorum n : Eurasian herb having small yellow flowers and red roots formerly an important source of the dye alizarin [syn: madder]
English → English (gcide) Definition: Rubia tinctorum Madder \Mad"der\ (m[a^]d"d[~e]r), n. [OE. mader, AS. m[ae]dere; akin to Icel. ma[eth]ra.] (Bot.) A plant of the genus Rubia (Rubia tinctorum). The root is much used in dyeing red, and formerly was used in medicine. It is cultivated in France and Holland. See Rubiaceous. [1913 Webster] Note: Madder is sometimes used in forming pigments, as lakes, etc., which receive their names from their colors, such as madder yellow. [1913 Webster] Field madder, an annual European weed (Sherardia arvensis ) resembling madder. Indian madder, the East Indian Rubia cordifolia, used in the East for dyeing; -- called also munjeet. Wild madder, Rubia peregrina of Europe; also the Galium Mollugo , a kind of bedstraw. [1913 Webster]