The coastal manroot (Marah oreganus) belongs to Cucurbitaceae (the Gourd family). It is a perennial vine that is native to the west coast of North America, from Canada to California in the United States. This herb grows in coastal meadows, forests, and it can reach several meters in length. It scrambles over shrubs or small trees by branched tendrils. The leaves are divided palmately into 5-7 pointed lobes, and heart-shaped at base. The yellowish green to cream to white, deeply cup-shaped flowers bloom in spring. The fruits are spherical, 4-5 cm in diameter, and covered in prickles, and ripen to yellow.