I think of this color chart:
Stolen, without any shame, from The Doghouse Diaries.
I do find myself getting frustrated with people that use wood species as names for color. I guess that is a frame of reference that I just have never developed. Naturally, I like to think of the words I use for color as more precise, but I know that enough people use Pecan as a color name that it must exist. Walnut and cherry are colors too, in case you were wondering.
For a much more detailed discussion on color names and some interesting comments, see the blog at xkcd blog post on color survey. If you are unfamiliar with xkcd, check out the comic: xkcd.com