I recently landed a short-term (but open-ended) research position at the University of California at San Francisco. UCSF is one of the world's leading biomedical research centers so it's an exciting place (for me) to be. It's also just a few blocks away from the Botanical Garden. I go there after work sometimes, like I did today.
Virgilia capensis--an underused tree.
Related to Psoralea pinnata...
Which I recently planted in my garden.
Agave chiapensis. Excellent choice for a small garden. Must get one.