Lichtensteinia

Perennial herbs, aromatic, with large rootstock. Leaves all in persistent, radical rosette, shortly petiolate, entire, pinnatifid or bipinnatisect, toothed. Flowers in compound, bracteate umbels. Calyx with 5 thick, ovate, acute lobes. Petals elliptic, quadrate or spatulate, with long, inflexed apices, keeled on inner face. Disc conical, often mostly connate. Stamens +/- as long as petals; filaments somewhat fleshy; anthers subdidynamous. Ovary smooth or strongly ribbed; styles sometimes minute. Fruit ovoid or oblong, nearly terete, crowned with persistent calyx; mericarps semiterete or flattened, flat on one face, convex on other, with 5 primary veins and oil ducts under each; oil ducts absent from furrows and face of mericarps. Seeds somewhat flattened, obovate or elliptic, often grooved on back.