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DescriptionUnarmed herbs or small shrubs. Leaves alternate, entire. Inflorescences in terminal or lateral cymes. Flowers actinomorphic or slightly zygomorphic, showy. Calyx ± curved, 10-ribbed and deeply 5-lobed; lobes linear to triangular-lanceolate. Corolla white with a yellow or purple centre or variously coloured; tube long; limb expanded. Stamens 5, arising from the corolla mouth, adnate around the style, exserted. Fruit a capsule.