Alders are trees of the genus Alnus in the birch family Betulaceae. The genus includes about 35 species [2] of monoecious trees and shrubs, a few reaching a large size, distributed throughout the north temperate zone with a few species extending into Central America, as well as the northern and southern Andes. [1]

2024年7月25日 · Alder trees (Alnus spp.) include 30 species of trees in the birch family. Learn their main characteristics, growing tips, and how to identify them. Skip to content

2025年3月11日 · 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 in parts of western South America on cool wet sites at elevations up to 2,500 metres (8,200 feet).

2022年11月16日 · Alder (Alnus) is a genus of flowering deciduous trees in the family Betulaceae. There are about 35 alder species, comprising of large trees and smaller shrub-like trees. Many species of alders grow between 66 and 100 ft. (20 – 30 m) tall.

Alder is the only British native deciduous tree to develop cones. Alder is native to almost the whole of continental Europe (except for both the extreme north and south) as well as the United Kingdom and Ireland.

2024年3月30日 · Alder trees play a significant role in multiple industries. They are valued for landscaping purposes, erosion control, and paper production. The versatility of alder trees is highlighted by their ability to be utilized in different sectors, showcasing their importance beyond ecological benefits.

2024年10月23日 · Alders are trees that compose the genus Alnus in the birch family Betulaceae. The genus includes about 35 species of monoecious trees and shrubs, a few reaching a large size, distributed throughout the north temperate zone with a few species extending into Central America, as well as the northern and southern Andes.

2023年12月25日 · Alder trees, known scientifically as the genus Alnus, are a captivating group of deciduous trees and shrubs belonging to the birch family Betulaceae. These trees have a wide distribution across the globe, with species native to North America, Europe, Asia, and Africa.

Alnus glutinosa, the common alder, black alder, European alder, European black alder, or just alder, is a species of tree in the family Betulaceae, native to most of Europe, southwest Asia and northern Africa.

Did you know that alder trees thrive best in damp, low-quality soil? Or that substances in their bark have medicinal properties? Read on to learn more about these and other alder tree key facts. Short-lived, fast-growing deciduous trees.