I found this on some live journal site, so I'm not going to link back to it.

What tree are you?

I am ...
Hornbeam Tree (the Good Taste) -- of cool beauty, cares for its looks and condition, good taste, is not egoistic, makes life as comfortable as possible, leads a reasonable and disciplined life, looks for kindness and acknowledgment in an emotional partner, dreams of unusual lovers, is seldom happy with its feelings, mistrusts most people, is never sure of its decisions, very conscientious.

Ok, it's about 50/50, but it's dead on about the unusual lovers part!