Latin name: Harpagophytum procumbens
Also know as: grapple plant, wood spider and Devils claw
The ethnobotanical use of devil’s claw originated in southern Africa. Devils claw is one of the floral emblems of Botswana where it is thought to be useful in treating a variety of pain conditions.
Harpagophytum Procumbens (commonly called Devil’s Claw) is a tuber vegetable that is used for combatting lower back pain as well as arthritis (both osteoarthritis and rheumatoid arthritis). It appears to have efficacy at this, and may take a few months to reach maximal efficacy (so it would be unlikely something like Aspirin, which acts fairly fast).