Cat’s claw should not be confused with cat’s foot, the red and white flowers of Antennaria dioica, or devil’s claw, Harpagophytum procumbens, a shrubby vine that grows in southwest Africa and is also used as an anti-inflammatory agent. Furthermore, there are several other plants that may be confused with cat’s claw. They may be given the name cat’s claw, but they are actually quite different.