milkwort

[milk-wurt, -wawrt] /ˈmɪlkˌwɜrt, -ˌwɔrt/
noun
1.
any plant or shrub of the genus Polygala, formerly supposed to increase the secretion of milk.
Origin
1570-80; milk + wort2
British Dictionary definitions for milkwort

milkwort

/ˈmɪlkˌwɜːt/
noun
1.
any of several plants of the genus Polygala, having small blue, pink, or white flowers with two petal-like sepals: family Polygalaceae. They were formerly believed to increase milk production in cows See also senega