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Eurasian herb having small yellow flowers and red roots formerly an important source of the dye alizarin

Eurasian herb having small yellow flowers and red roots formerly an important source of the dye alizarin

A plant from the root of which a red dye and color are extracted.

A plant whose root affords a red dye.

Plant whose root yields a red dye.

A perennial herb or a red dye made from it.

dyers', Rubia.

The root of Rubia tinctorum; a red dye.

The genus Rubia, especially Rubia tinctorum.

n. [Anglo-Saxon] A plant of the genus Rubia, cultivated chiefly in Holland and Turkey, for the dye which its roots yield. Of these, the madder-red is the most prized; and of it, the variety called Turkey-red.