Wisteriopsis

Wisteriopsis is a genus of flowering plants belonging to the family Fabaceae. Its native range is China to Indo-China and Temperate Eastern Asia. Wisteriopsis species are twining woody vines, generally resembling species of Wisteria. The genus was established in 2019 as a result of a molecular phylogenetic study, and includes species formerly placed in Millettia or Callerya.

==Description== Species of Wisteriopsis are twining woody vines, up to high, with greyish brown or brown stems. They climb over shrubs or sprawl over rocks. The leaves are either deciduous or more often evergreen, with about 7–15 leaflets arranged in opposite pairs plus a terminal leaflet. The flowers are arranged in panicles, or sometimes racemes in the leaf axils. Individual flowers are long; the inflorescences are about long. The five lobed calyx has a ring of fine hairs at the mouth so that the margin of each sepal is ciliate. Each flower has the typical shape of members of the family Fabaceae. The standard or banner petal is white, sometimes with a greenish, pink or purple flush, and has a yellow or green nectar guide inside. The wing and keel petals are equal in length, long, with a prominent claw at the base. When the flowers open, the wing petals are free from the keel and the staminal column is visible between the wings and the keel. Nine of the stamens are fused together at the base, the other is free. The seed pods are long and wide, dark brown when ripe, splitting explosively to release the smooth brown seeds.