island false bindweed
Calystegia macrostegia (Greene) Brummitt

Calystegia macrostegia, known as island false bindweed, is a species in the Convolvulaceae family. It is native to California, Mexican Pacific Is., and Mexico Northwest.
Description
Calystegia macrostegia, with the common names island false bindweed and island morning glory, is a species of morning glory in the family Convolvulaceae. It is distributed across California, Mexican Pacific Is., and Mexico Northwest. The species was published in 1965 and is part of the genus Calystegia.
Other common names
island false bindweed
Distribution
California · Mexican Pacific Is. · Mexico Northwest
Synonyms
Volvulus macrostegiusConvolvulus occidentalis var. macrostegiusConvolvulus macrostegius