Sorry- I wasn't thinking anything acticulated, but if that's the case, then silhoete drapey trees in front of grey swampy forest? Hmmmmm I'm within the ball park even if I didn't kick the goal anyways...
Well, as soon as you said snake, I thought drapy climbing, mossy type plants- ones that strangle trees to death to survive.They're very green, and angery plants with a distinctive shape. Swamp I think will fit