Calystegia purpurata is a species of morning glory known by the common names smooth Western morning glory or Pacific false bindweed.

[1][2] It is endemic to California, where it grows in the seaside scrub of the coastline and the chaparral of the coastal and inland valleys.

Calystegia purpurata is a robust perennial herb growing from a woody caudex and extending spreading or climbing stems up to 70 centimeters.

The lobed leaves are up to 5 centimeters long and generally triangular in shape.

The flower is a morning glory up to 5 centimeters wide, in color white, pink, purple, or white or cream with purple stripes.