This XfrogPlants Grey Alder 3D model collection contains nine highly detailed, fully textured variations of the plant at different ages.

Tree, deciduous broadleaf, broad columnar
Height: up to 20 m (typically around 12 m)
Origin: Eastern Europe (Caucasus)
Environment: mountain forests, near water courses; on calcareous soil
Climate: cool, temperate

Notes:
The Grey Alder is a fast-growing, short-living forest species of Eastern Europe that grows in mountain forests, preferably along water courses. It is a pioneer species(re-colonizing wasted lands) and it is often used along mountain roads to consolidate the mountain sides in order to avoid landslides. It is cold resistant. The timber is lighter than the one of the Black Alder, and not as useful. In Autumn, the foliage does not really turn colors, it only discolors a bit then falls.