Trees or shrubs. Leaves large, petiolate; stipules large, glandular within at the base. Inflorescences terminal, cymose, the cymes arranged in racemose panicles. Flowers 5-merous, the hypanthium oblong ovoid, the calycine cup with lobes subequal, or 1 disposed as a stalked foliaceous limb; corolla funnelform, villous within, the lobes imbricate, 2 of them exterior; stamens with the anthers dorsi-fixed, versatile, exserted; ovarian disc annular, the style included or exserted, the stigmas 2, short, the ovary 2-celled, the ovules numerous, the placenta adnate to the septum. Fruits capsular, septicidally bivalvate; seeds numerous in 2 cells, horizontal, 3-angulate, marginate, reticulate.
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occurs in Mexico, Central America and tropical South America.