Attached to animals. The seed propagule attached to animals will eventually fall off or be removed by animals, thus achieving the purpose of transmission. The seeds spread by hook hemp in South Africa attach to animals. South African hook hemp is an African herb that can be found in Namibia, Botswana, South Africa, Angola, Zambia and Zimbabwe. The traditional use of South African hook hemp is as an analgesic, used for fever and allergy, appetite irritation, wounds and rashes, dyspepsia, liver and kidney diseases, diuretics and sedatives, and used for treating degenerative diseases of musculoskeletal system. The dried tuber is usually the active part of the plant used, although the name of the South African hook hemp is obtained from the claw-like appearance of the fruit.