I'm in San Diego and saw this plant growing on a bluff over the ocean. It looks kinda like a morning glory but I want the specific name of it so I can find it at a nursery. I researched native california morning glory varieties and this seems to be not that as it has a longer flower and seems to be more of a shrub than a vine. Also it has a darker forest green leaf. It is a low-water drought tolerant plant as it is surviving with just the little rainfall we have in San Diego.
