Ovary bilocular; ovules solitary in each locule, attached near the base of the septum; style filiform, ± glabrous or papillate; stigma lobes linear, exserted.
Seeds linear-oblong, dorsally convex, or ± angular, ventrally ± flat or rounded but not grooved; testa minutefy granular; endosperm cartilaginous.
Fruit indehiscent, small, ellipsoid to oblong-ovoid, compressed, smooth or finely ribbed when dry, 1-2-locular, 1-2-seeded.
Corolla somewhat fleshy; tube funnel-shaped, hairy inside for upper half; lobes 4, valvate, ovate to elliptic-lanceolate.
Calyx tube oblong-ovoid, 4-angled; limb irregularly lobed, lacerate or with 2–4 indistinct triangular lobes.
Prostrate succulent perennial herbs confined to the littoral zone.
Flowers solitary, axillary, hermaphrodite, heterostylous.
Filaments filiform; anthers linear, exserted.
Disk fleshy.