blue brushwood fog forest nature silouette sunrise sunset trees underbrush vector brush brush-wood green grow grown moss mosssy natural plant soft sunlight tiny tree trunk winter wood woods decay summer autumn fall root Roots American larch Antarctic flora bush cushion flower grass moss cushion Non-vascular land plant shortstraw pine Terrestrial plant vascular plant natural environment Natural landscape nature reserve trunks vegetation woodland bank berlin Body of water Freshwater marsh germany grunewald reflection reflections Teufelssee water