Glabrous, tufted perennials, usually growing in rock or wall crevices, inodorous, rhizomatous. Leaves 2–3-pinnatisect, at least partly glaucous. Inflorescence racemose, pedunculate, many-flowered. Bracts shorter than the pedicel which elongates and is spreading to reflexed in fruit. Flowers zygomorphic. Sepals lateral, basally or ±centrally attached. Outer pair of petals broadly winged, emarginate, upper petal with a short basal spur; inner pair of petals free, oblong, with a short basal claw and indentation along one side. Stamens 6. Stigma with 2 crescentic lobes and short paired apical appendages. Fruit a papery, oblong, 3–13-seeded capsule.
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