The Marin CNPS Facebook page has the following new post
2-3 dozen Trillium chloropetalum along trail past picnic area/bridges from Phoenix Lake parking lot. Some white flowered ones. Not to be confused with Trillium ovatum which is also blooming in same vicinity. Another dozen T. chloropetalum after you pass the MMWD boundary sign, to head uphill to top of Phoenix Dam. Anyone ever seen this population?! I’ve only noticed T. ovatum here, year after year….
See photos and older posts at Marin Native Plants.
Natural History Wanderings 
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