蔓虎刺属（Mitchella），多年生匍匐性草本，无毛。叶对生，薄革质，羽状脉；托叶叶柄间。花成对，顶生；花萼宽钟形，3-6齿；花冠白色，漏斗形，喉部被毛，裂片3-6，苞时镊合状；异形花柱，雄蕊内藏或突出；子房4室，每室1胚珠，柱头4裂。浆果2枚合生，4分核。**有1种。

Mitchella is a genus of flowering plants in the Rubiaceae family. It is found from China to temperate eastern Asia, and from eastern Canada to Guatemala.

The genus Mitchella was named by Carl Linnaeus after his friend John Mitchell (1711–1768), an English physician who lived in America and gave Linnaeus much valuable information on the American flora.