A genus of the Monogynia order, belonging to the Pentandria class of plants. It is found chiefly in the warmer regions of the continent; that which grows in England is inferior in the colouring power of its roots, for which the plant is chiefly valuable. The greatest quantity is raised in France, from whence it is principally obtained. If the root of this plant is digested in oil, alcohol, or unctuous matter, a deep red colour is extracted, which is extensively employed in colouring various unguents, and also in staining mahogany and marble. The colouring matter exists in the bark of the plant; and as the roots contain most bark, a greater quantity of colouring matter is extracted from them than from the other parts.

Alkanet Or Bugloss 73