Eucalyptus camaldulensis, commonly known as the river red gum, is a species of flowering plant in the family Myrtaceae, and is endemic to Australia. It is a tree with smooth white or cream-coloured bark, lance-shaped or curved adult leaves, flower buds in groups of seven or nine, white flowers and hemispherical fruit with the valves extending beyond the rim. A familiar and iconic tree, it is seen along many watercourses across inland Australia, providing shade in the extreme temperatures of central Australia.
Eucalyptus camaldulensis
Trunk and bark
Flower buds
Flowers
In forest ecology, a snag refers to a standing dead or dying tree, often missing a top or most of the smaller branches. In freshwater ecology it refers to trees, branches, and other pieces of naturally occurring wood found sunken in rivers and streams; it is also known as coarse woody debris. Snags provide habitat for a wide variety of wildlife but pose hazards to river navigation. When used in manufacturing, especially in Scandinavia, they are often called dead wood and in Finland, kelo wood.
A fir tree snag among living fir trees
A coast Douglas-fir snag provides nest cavities for birds
Successional stages of a snag from death of a tree to final decomposition.
Stage 5 snags, Wallowa County, Oregon