Herbs fleshy. Stems short, cylindric. Leaves spirally arranged. Inflorescences subcapitate; bract 1, navicular-ovate, ca. 1/2 as long as corolla; bractlets absent. Flowers subsessile. Calyx absent. Corolla tubular-bilabiate; tube suberect, not enlarged; upper lip emarginate or 2-lobed; lower lip 3-lobed, much shorter than upper. Stamens (3 or)4(or 5), included; anthers 2-celled, all fertile, connective slightly elongated. Carpels 3; ovary 1-locular; parietal placentas (4-)6(or 10). Style long; stigma 2-lobed. Capsule ovoid. Seeds minute; testa reticulate.
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