Dear gods of the plant world, what kind is this?

Rubia is a perennial climbing herb of Rubiaceae. Madder 0 1:08

Its grass climbing vines are usually 1.5-3.5 meters long; Leaves usually in 4 rounds, papery, lanceolate or oblong-lanceolate; Cymes are axillary, terminal, multi-branched, with many flowers 10 to dozens. Inflorescence and branches are thin and spiny. The fruit is spherical, usually 4-5 mm in diameter, and orange when ripe; The flowering period is from August to September, and the fruiting period is10-165438+1October. Madder is often found in sparse forests, forest margins, shrubs or grasslands. It is cold-resistant and afraid of water accumulation. Distributed in Northeast China, North China and Northwest China, Sichuan and Tibet, as well as North Korea, Japan and the Russian Far East. [2] Look at the morphological characteristics

Madder is one of the commonly used traditional Chinese medicines in China, which has the functions of promoting blood circulation to stop bleeding, dredging meridians, relieving cough and resolving phlegm. [3] Its rhizome and fibrous roots on nodes contain alizarin, which can be dyed red. Since Shang and Zhou Dynasties, it has been used as an important red plant dye.