growing near salix and toyon
close to woody plants, possibly mycorrhizal. My guess is that it's associating with chamise. There are a few Ceanothus, Rhamnus, and Quercus around but I don't think they were very close
multiple
The downside of living in the SF Bay Area: having to relearn mushrooms every year. At least I know a lot of shrooms it isn't. @damontighe.
Under scrub oak emerging from stick pile