Description from
Flora of China
Stems herbaceous, erect, many branched; branches opposite or in whorls of 4, slender. Leaves lanceolate to oblong-lanceolate, pinnatipartite to pinnatisect. Inflorescences racemose. Calyx cleft anteriorly; lobes 5, triangular, often entire. Corolla purple; beak longer than anther-containing part of galea, bent upward, slender. Capsule 4/5 exceeding calyx.
One species.