Capparis sandwichiana is a species of flowering plant in the Capparaceae family endemic to the Hawaiian Islands.

Common names include maiapilo, pua pilo,[3] and Hawaiian caper.

C. sandwichiana can be found on the main islands, Midway Atoll, the Pearl and Hermes Atoll, and Laysan.

[4] It inhabits coastal low shrublands and rocky shores at elevations from sea level to 325 feet (99 m).

[3] Maiapilo is listed as vulnerable by the IUCN and is threatened by grazing, competition with invasive species, and habitat destruction.