About Caryopteris incana (Thunb. ex Houtt.) Miq.
Caryopteris incana is a deciduous vine, reaching up to 2 m in length and having tuberous roots. Its leaves are alternate, palmately divided into 5 segments. The marginal segments are the smallest and further divided into 3, while other leaflets are palmately or pinnately divided. The leaf margins have sparse serrations. The leaf axis and nodes have wings and are glabrous. The petiole is 1 - 6 cm long. The flowers are bisexual, and the panicles are opposite to the leaves. The peduncle is 3 - 8 cm long and twisted, with a pale - yellow color. The calyx is divided into 5 parts, and there are 5 petals and 5 stamens, along with 1 pistil and a disc. The fruits and seeds are round, 5 - 7 mm in diameter, white, purple, or blue, with spots, and contain 1 - 2 seeds. The flowering period is from late June to early August, and the fruiting period is from late August to mid - October. It is distributed in central - southern China, as well as Hwanghae Province and South Pyongan Province.
