From Alaska to Oregon, Alnus viridis subsp. sinuata (A. sinuata, Sitka alder or slide alder), characteristically pioneer fresh, gravelly sites at the foot of retreating glaciers.

Oct 4, 2025 · alder, (genus Alnus), genus of about 30 species of ornamental shrubs and trees in the birch family (Betulaceae). Alders are distributed throughout the Northern Hemisphere and …

Alnus is an ancient and complex genus originating in the late Cretaceous (Graham 1993; Chen, Manchester & Sun 1999).

Alnus Mill.

Native to the Northern Hemisphere from the subarctic to the Himalayas and Andes, extending into the Southern Hemisphere in Peru. Alnus: Latin name for alder.

The genus, Alnus, is Latin for alder. The species name, glutinosa, is reflective of the sticky texture of its young leaves and stems. This tree will grow 40-60 feet tall and 20-40 feet wide with …

Identification: The defining characteristic of Alnus species is its large, very sporadically occurring aggregate rays. On the face grain of the wood, the rays may be mistaken for occasional …

3 days ago · Wikipedia Alnus on Wikispecies. Wikispecies Category: Alnus on Wikimedia Commons. Wikimedia Commons Alnus at Integrated Taxonomic Information System. Alnus at …

Alnus is characterized by winter buds with long stalks and two valvate scales, inflorescences borne in racemose clusters, and development of both pistillate and staminate inflorescences …

Oct 23, 2024 · Description: A medium-sized tree that can grow up to 20-30 meters tall. It has dark, fissured bark, and its leaves are rounded, with a wavy or slightly toothed margin. It produces …