Speaking of Calochortus...

Calochortus tiburonensis, 2011.

While I'm on the genus of Calochortus, here's one with no location-specific information needed in the caption. This gem grows in only one country, one state, one county, and one remaining stand of open space in the world. It's The Tiburon mariposa lily, found only at Ring Mountain Open Space Preserve in Marin County.

I was lucky to be able to join a group of coworkers from the Presidio on a hike here a few weeks ago. Cameras went wild, and people gasped. Within this group, the term "plant nerd" is a term of endearment, and there's no shame in emotional outbursts when encountering things of natural beauty while hiking. In fact, it's encouraged.

Thanks to Sam for taking us to his workplace on an evening off and showing us the hidden treasures of this awesome spot. It's so close to the City, but many had never been.