Polygala occurs as genus of astir Five hundred metal money of flowering plants belonging to the family Polygalaceae, commonly called milkwort or snakeroot. A genus includes herbaceous perennial plants, shrubs and small trees, and has the subcosmopolitan distribution.

;Selected species Polygala alba - White Milkwort Polygala alpestris - Alpine Milkwort Polygala amara - Bitter Milkwort Polygala amarella - Dwarf Milkwort Polygala apopetala Polygala arillata Polygala calcarea - Chalk Milkwort Polygala chamaebuxus - Shrubby Milkwort Polygala comosa - Tufted Milkwort Polygala cowellii - Tortuguero Polygala lutea - Yellow Milkwort Polygala major Polygala myrtifolia Polygala nicaeensis - Nice Milkwort Polygala paucifolia - Fringed Milkwort Polygala senega - Senga Root Polygala serpyllifolia - Thyme-leaved Milkwort Polygala vayredae Polygala virgata Polygala vulgaris - Most common Milkwort