Grammica sandwichiana (Choisy) O.Deg., I.Deg., Hadac & Chrtek Cuscuta sandwichiana (Kauna'oa kahakai) is a parasitic vine and the only member of the genus Cuscuta that is endemic to the Hawaiian Islands.

[1] It parasitizes a wide variety of indigenous, endemic and introduced plants on all of the main Hawaiian islands.

It grows in coastal areas with sandy soils from sea level elevation to 975 feet.

It is an unrelated plant in the Laurel family Lauraceae which can be distinguished by it larger, coarser yellowish-green stems.

[4] Cuscuta sandwichiana is a twining vine with thin, leafless yellow to yellow-orange stems and very small yellowish flowers which grow in small clusters along the stems.