Polygala senega is a species of flowering plant in the milkwort family, Polygalaceae. Polygala ambigua is a species of flowering plant in the milkwort family (Polygalaceae). Polygala africana is a species of flowering plant in the milkwort family (Polygalaceae). Polygala amara is a species of flowering plant in the milkwort family (Polygalaceae). The northern embankment supports plants such a common milkwort, common centaury and white clover. It belongs to the milkwort family of Polygalaceae. Flowering herbs include common rock-rose, harebell, chalk milkwort and field scabious. The white anthers of the flowers may possibly be the source of the name milkwort. Other flora include salt-tolerant species such as sea milkwort, false fox sedge, and sea spurrey. The heath milkwort can be all the same colours except for white. Polygala serpyllifolia, the heath milkwort, is a native perennial of heaths and grassy places. In drier heath areas there are heather, purple moor-grass and heath milkwort. In dry grassy areas tormentil, heath bedstraw and heath milkwort are all common. There is wild thyme, common milkwort, fairy flax, bird's-foot trefoil, autumn gentian, harebell, eyebright. Common milkwort "Polygala vulgaris" and Fairy flax "Linum catharticum".