Perennial herb, up to 0.2 m high, procumbent. Stems many, glabrous, with minute cuticular ridges. Leaves subtended by 2 stipules; oblanceolate or oblanceolate-elliptic, margins entire. Inflorescence a terminal, many-flowered raceme. Flowers deep mauve. Sepals oblong, margins membranous; outer 2 thickened at apex; inner 2 saccate. Petals obovate. Fruit oblong.