altitude autumn canada color colour foliage high leaf leaves montane mountain natural nature patchwork plant Rockies Rocky Mountains tree yellow Beech Trees forest green natural forest spruce sun sunbeams sunburst sunlight woodland woods blue branch bright hazel red shrub sky spring veines vivid ash bough cool copse England Fraxinus holt peace peaceful rest restful shade spinney summer Surrey trees trunk wood country road fall fence maple trees Ohio orange rural split rail fence blue sky clouds farmland field grass leafs meadow noon oak oak tree october sunny sunshine abstract angles appearance backgrounds blades colors colours durable evergreen fronds light lines palm palm-foliage palm-tree palms palmtree pinnate resistant shadows shady sharp spreading temperate texture textures variations