Devil's Palm

A Devil's Palm (悪魔の手のひら) is a phenomenon featured in the seventh part of the JoJo's Bizarre Adventure series, Steel Ball Run. They emerge around the Saint Corpse Parts, in each of the locations Jesus gave on a map of North America to.

Summary
When Jesus died on the western coast of North America, a great storm and earthquake tore and reshaped the land, which divided his Corpse into 9 Parts that would be carried by animals and other forces of nature eastwards.

Carrying the Corpse Parts while migrating around the country and appearing in seemingly random places, Devil's Palms occasionally ensnare people, occasionally granting them Stands, or, still less often, a Corpse Part.

As the Boomboom Family explain, those passing through them are forever changed. Along with the Corpse Parts themselves, surviving a period in any of these locations seems to be the only way to develop a Stand. Johnny Joestar obtained his first Corpse Part from a Devil's Palm in Monument Valley, soon discovering his Stand Tusk, and Mountain Tim obtained his Stand Oh! Lonesome Me in a similar location.

It was revealed that the Devil's Palms are sacred sites to Rock Humans, and that there is a direct link between the Devil's Palms and Morioh Town.

List of Devil's Palms

 * Arizona Desert / Monument Valley: Containing the Left Arm
 * Sugar Mountain (Tree/Stand), South-West of Milwaukee: Guarding the Ears and the Right Arm.
 * Land near San Diego where Funny Valentine's unit got lost: Having the Heart.
 * Top of a mountain in the Rocky Mountains: Containing the Left and Right Eyes.

Trivia

 * The meteorite described in reference to the first Devil's Palm mentioned may have been a reference to the meteorite from which the Stand Arrows were carved.