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DescriptionPerennial herbs or shrubs. Leaves (in ours) dentate. Inflorescences of axillary dichasical cymes. Bracts and bracteoles c. as long as calyx. Calyx lobes 5, ovate. Corolla 2-lipped; upper lip 3-lobed, transversely ribbed on palate. Fertile stamens 4. Capsule with 1 seed in each loculus. Seeds borne on retinacula; with white hygroscopic hairs.