Nature walk in LA

beautiful blue ~ are there wild irises on the left of picture?

No Iris that I know of. It's all planted with California native plants. Most not so interesting. In fact they say the yellow daisy is not native & cut it out in some parks which saddens me as I think it is a beautif sight. They are all green reeds around the side of the creek. They take over though far too quickly, so they cut them out one a yr. or so.