Alder - Wikipedia
Alders are trees that compose 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]
Alder | Definition, Description, Tree, Wood, & Facts | Britannica
Alder, 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. Several species are cultivated for their useful wood.
Alder Tree: Key Facts - Forest Wildlife
What Is an Alder Tree? Alder trees are closely related to birch trees, as they both belong to the same scientific family. There are several dozen species of alder trees, all belonging to the Alnus genus. Alder trees grow primarily near bodies of water in cooler temperate regions throughout the Northern Hemisphere.
What Is An Alder Tree: Information About Alder Trees - Gardening Know How
2022年10月8日 · Alders have several distinctive features that keep them interesting throughout the year. The easiest way of recognizing an alder tree is by its distinctive little fruiting body, called a strobile. They appear in fall and look like 1 inch (2.5 cm.) long cones.
Alder Trees: Leaves, Bark, Flowers, Cones - Identification (Pictures)
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.
12 Species of Alder Trees for Your Yard - The Spruce
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.
15 Types of Alder Trees By Species & Region (With Pictures)
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.
Alder facts and information - Trees for Life
Alder is a member of the birch family of trees, Betulaceae. It can reach 30 metres in height, although in Scotland it is rarely more than 20 metres tall. Like the birches, it is a pioneer species which grows quickly and is relatively short-lived.
Alder (Alnus glutinosa) - British Trees - Woodland Trust
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.
Exploring Alder Trees: Uses and Benefits Beyond Their Ecological …
2024年3月30日 · Alder trees belong to the genus Alnus and are part of the family Betulaceae. They are one of the few tree species that can fix nitrogen from the air into the soil, aiding in soil fertility. Alder wood is water-resistant, making it ideal for outdoor construction projects. In folklore, alder trees are associated with protection and healing.