Ceratostigma Bunge

Shrubs, shrublets, or perennial herbs. Stems erect or spreading, rarely sublianous, branched, usually strigose. Leaf blade margin with incurved hairs. Inflorescences terminal or axillary, subcapitate to capitate, with 2 to many spikelets; spikelets usually 1-flowered; bracts herbaceous; bractlets 2, membranous. Calyx tubular, herbaceous along ribs, membranous between ribs except at base, usually split between ribs by fruiting time. Corolla salverform, extended beyond calyx; limb rotate; lobes obovate to obdeltate. Stamens hypogynous or becoming adnate to corolla base; anthers oblong-linear, slightly exserted. Ovary oblong-ovoid to ellipsoid, slightly 5-angular or 5-sulcate, apex conical. Style 1, apically 5-branched; stigma on inner side of style branches, covered with stalked or sessile capitate glands.