Stems: erect, branched above. Leaves: alternate, reniform-cordate, doubly crenate or somewhat lobed. Flowers: corymbose, axillary Fruit: capsule membranous, short, inversely cordate.

A marsh plant, or growing in the moist shade, from two to six inches high with alternate rounded blunt-toothed leaves, and orange-yellow flowers that usually have four calyx lobes, coloured within, the four to eight stamens being inserted on the margin of a disk.