The Marin CNPS Facebook page has has a posting on blooms as of 3/9/18 on Rock Springs and Rocky Ridge.
There are photos of Pedicularis densiflora, Whipplea modesta, Dendromecon rigida, Claytonia gypsophiloides, Ceanothus jepsonii and Trillium ovatum Other species seen included micranthes, ceanothus cuneatus, taraxacum, cardamine, tauschia, lomatium, sanicula, iris and many more. Also, on the way in I saw a very healthy patch of Lupinus bicolor and popcorn flower sp.
See photos and older posts at Marin Native Plants.
Natural History Wanderings 
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