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Shrubs erect, canescent. Leaves opposite, broad, subsessile. Cymes extra-axillary or terminal, umbel-like, long pedunculate. Calyx with basal glands. Corolla bowl-shaped to subrotate, divided to middle; lobes valvate or overlapping to right. Corona lobes 5, adnate to gynostegium, fleshy, laterally compressed, apex with a tubercle on each side, with abaxial, basal, revolute spur. Filaments connate; anther appendages incurved; pollinia 2 per pollinarium, oblong, pendulous. Styles long; stigma head slightly convex. Follicles ovoid, subglobose, or oblong-lanceolate, mesocarp inflated.
Large coarse herbs sometimes becoming shrubby with age. Leaves sessile or nearly so, broad and somewhat fleshy. Inflorescences umbelliform or racemi-form cymes. Flowers with the calyx deeply 5-lobed, the lobes lanceolate to ovate; corolla shallowly campanulate, apices of the lobes usually purple, triangu-lar-ovate, cut halfway to the base or less, valvate in bud; stamens adnate near the base of the corolla, corona of 5 fleshy segments adnate to the staminal column and with an upcurved spur and auricles at the base. Fruit usually a pair of inflated, fleshy, follicles.
