Ryan, I don't recall anything but pine-ish trees for the holiday sets they go with, but the 3 or 4 tree set is pretty nice... If you guys have a "mountain" area it's worht a look at these, or you could try stripping the white coatings off them, or just repaint them green over the white... All options.
Lots of good holiday bits though I think. Also if I may make a suggestion, the small pre-wired lighted pieces have lots of uses in dioramas. From lighting homes, to street lamps, to landing pad lights, to spotlights on a vehicle (AT-AT's had them for instance), etc...