A woody vine, this species is characterized by its large trumpet-shaped yellow flowers that bloom year-round, though most often after rain.

It is endemic to Baja California Sur, Mexico, where it can be found twining and climbing over trees, shrubs, and rocks.

[2][5] The trumpet-shaped flowers on this species are borne solitary, measure 3 to 8 cm (1.2 to 3.1 in) long, and are colored a bright yellow.

Each flower only blooms for a single day, opening in the morning and closing by the late afternoon.

It requires full sun and low water, and needs well-drained soil.