Mr. PAUL BROWN: (Singing) Well, last night I slept in the open, down by a redwood tree.

NPR: Jazz Guitarist Paul Brown and 'The City'

Hill had spent two years trying to protect a giant redwood tree by living in its branches, and she was going to speak at a San Francisco bookstore.

NEWYORKER: Greening the Ghetto

You see one single flower nodding on a cliff side far across the canyon, or a huge knot in a redwood tree looking like Zeus' face, or some of God's little crazy creations goofing around in creek pools (zigzag bugs), or a sign on a lonely fence saying 'M.

NPR: Zigzag Bugs And 'A Sea Like God': Kerouac's Big Sur

While other beers use hops trucked in from time zones away, Moonlight's Working for Tips thinks local: Its redwood twigs come from a tree in the brewery's front yard.

WSJ: Get Into the Gruit

Ms. Arneja, who snagged the sought-after house in Noe Valley, said she was drawn to the interior, which is covered almost entirely by dark redwood and brick, lending it a feel that lands somewhere between a den and a tree house.

WSJ: San Francisco's Hot Real-Estate Spot for the Rising Tech Generation

They can occur on any tree, anywhere, but are commonly found on elm, walnut, cherry, redwood and (again) our old friend and free-spirited, maple.

NPR: Excerpt: 'A Splintered History Of Wood'