Japanese Maple tree with new growth, Portland Japanese Garden, Oregon, USA.

Close up of autumnal colours and trunks of aspen trees, Inyo National forest, California, USA.

Close up of autumnal colours and trunks of aspen trees, Inyo National forest, California, USA.

Lone tree in morning fog, Kauai, Hawaii, USA.

Ginko, Maidenhair tree, Gingko biloba, Single gree leaf among autumnal oak leaves, Wilsonville, Oregon, USA.

Japanese Maple tree in autumnal colours, Portland Japanese Gardens, Oregon, USA.

Tamarack or larch in autumnal color, North Cascades National Park, Washington, USA.

Trees in fog with sun streams, Willamette National Forest, Aufderheide National Scenic Byway, Oregon, USA.

Redwood trees and path with sunlight streaming in Lady Bird Johnson Grove, Redwood National and State Parks, California, USA.

Trees in fog with sun streams, Willamette National Forest, Aufderheide National Scenic Byway, Oregon, USA.

Trees in fog with sun streams, Willamette National Forest, Aufderheide National Scenic Byway, Oregon, USA.

Painted Eucalyptus tree with leaf of philodendron, Keanae Arboretum, Maui, Hawaii, USA.