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Webster 1913 Edition

Noun.

(Bot.)

A genus of plants (

Polygala

) of many species. The common European

Polygala vulgaris

was supposed to have the power of producing a flow of milk in nurses.

☞ The species of

Campanula

, or bellflower, are sometimes called milkwort, from their juice.

milkwort ‎(plural milkworts)

Any of more than 500 species of flowering plants of the genus Polygala that are used as a food source by the larvae of some members of the Lepidoptera order.

Polygala