Well, the title says it all:
What kinds of plants would you grow when you are in zone 10b, 1200 millimeters of rain (47 inches), clay soil with rock dust and rocks, no rain from June to August, most rain is in spring, then winter and then autumn. Lots of hills so difficult to make swales.
Here are some pics from the native woods and the major pioneer plant (fig cacti)
I'm thinking of these:
Perennial peppers (hanabero, ají dulce etc)
Figs (they are a weed so you dont need to grow them)