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DescriptionShrubs or subshrubs. Leaves with caudate apex and cuneate base; margin entire. Inflorescence spike-like, terminal or axillary. Bracts longer than calyx. Calyx divided ± to base into linear lobes. Corolla ± actinomorphic, with contorted aestivation in bud, usually white with purple or pink markings. Stamens 4. Ovary 2-locular with 2 ovules per loculus. Seeds with hygroscopic 1-seriate hairs.