The coast redwoods (sequoia sempervirens) make me think of Rivendell. The giant sequoia, like in this photo (sequoia giganteum) are like the Ents.

There's another sequoia with a really fascinating story. We have them in San Francisco in the botanical garden. Dawn redwoods, if you are interested in this very beautiful deciduous "extinct" redwood:

https://en.m.wikipedia.org/wiki/Metasequoia_glyptostroboides