Fukien White Crane Fist 白鶴拳 (Bai He quan or Hakutsuru-ken) is a Southern Chinese martial art that originated in Fujian province. According to oral tradition, the style was developed by Fang Qiniang, a female martial artist, in the mid-17th century. It is associated with traditional fighting techniques, including long range, but is most similar to close-quarter or hand-to-hand combat. It is most recognizable by the way the fighter imitates a bird's pecking or flapping of wings. Over time, White Crane branched off into four styles: Ming He quan (crying crane), Shi He quan (eating crane), Fei He quan (flying crane), Zhong He quan (shaking crane).
Fujian White Crane is one of the constituent styles of Five Ancestors, who use the "San zhan" form; it is best known in Japanese as Sanchin. Bai He quan and its San zhan indeed influenced the Okinawa-Ti that next became karate and the White Crane system that was called Hakutsuru-ken.
Our Hakutsuru-ken has three roots, it comes from the Kojo family system, the Soken's teachings and the Tomari-te system.