Perennial, succulent, herbs or undershrubs; stem erect, caulescent, glabrous, sometimes suffrutescent; leaves alternate or subopposite, sub-sessile, exstipulate, flat, auriculate at base, margins entire; inflorescence axillary or terminal, panicle or raceme; flowers few-many per peduncle; sepals persistent, membranous, lanceolate to ovate; petals-5, purple-pink, elliptic to ovate; stamens numerous; stigma 1-3 lobed; style 3-fid; ovary half inferior, half adnate, 1-celled; ovules 2-many on basal or central column; capsule globose or ovoid, 2-3 valved, dehiscent; pedicels decurved in fruit; seeds subglobose or compressed, strophiolate.