Calystegia macrostegia, with the common names island false bindweed and island morning glory, is a species of morning glory in the family Convolvulaceae. Distribution The plant is native to California coastal sage and chaparral habitats, along the coasts in Southern California and into Baja California, Mexico. It is found on all the Channel Islands, source of its common names. It is also commonly found in the Peninsular Ranges, Transverse Ranges, and Outer Southern California Coast Ranges. Description Calystegia macrostegia is a woody perennial herb or small shrub which may be a low herbaceous vine or a stout, woody, climbing plant which can approach in length. The triangular leaves may be over 10 centimeters wide. The vine produces white, to very pale pink, to lavender blooms, often according to drought or temperature. The corollas are or more in width. Subspecies Subspecies include: Calystegia macrostegia ssp. amplissima Calystegia macrostegia ssp. arida Calystegia macrostegia ssp. cyclostegia Calystegia macrostegia ssp. intermedia Calystegia macrostegia ssp. macrostegia Calystegia macrostegia ssp. tenuifolia Cultivation Calystegia macrostegia is cultivated as an ornamental plant, used as a vine and groundcover in native plant, drought tolerant, and wildlife gardens. It is a pollinator plant for native bee species. References External links Calflora Database: Calystegia macrostegia (island morning glory, island false bindweed) Jepson Manual eFlora treatment of Calystegia macrostegia U.C. Photos gallery — Calystegia macrostegia macrostegia Flora of California Flora of Baja California Natural history of the California chaparral and woodlands Natural history of the California Coast Ranges Natural history of the Channel Islands of California Natural history of the Peninsular Ranges Natural history of the Santa Monica Mountains Natural history of the Transverse Ranges Garden plants of North America Drought-tolerant plants Vines Flora without expected TNC conservation status