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alder    音标拼音: ['ɔldɚ]
n. 赤杨

赤杨

alder
n 1: wood of any of various alder trees; resistant to underwater
rot; used for bridges etc
2: north temperate shrubs or trees having toothed leaves and
conelike fruit; bark is used in tanning and dyeing and the
wood is rot-resistant [synonym: {alder}, {alder tree}]

Alder \Al"der\ ([add]l"d[~e]r), Aller \Al"ler\ ([add]l"l[~e]r),
a. [From ealra, alra, gen. pl. of AS. eal. The d is
excrescent.]
Of all; -- used in composition; as, alderbest, best of all,
alderwisest, wisest of all. [Obs.] --Chaucer.
[1913 Webster] alderfly


Alder \Al"der\ ([add]l"d[~e]r), n. [OE. aldir, aller, fr. AS.
alr, aler, alor, akin to D. els, G. erle, Icel. erlir, erli,
Swed. al, Dan. elle, el, L. alnus, and E. elm.] (Bot.)
A tree, usually growing in moist land, and belonging to the
genus {Alnus}. The wood is used by turners, etc.; the bark by
dyers and tanners. In the U. S. the species of alder are
usually shrubs or small trees.
[1913 Webster]

{Black alder}.
(a) A European shrub ({Rhamnus frangula}); Alder buckthorn.
(b) An American species of holly ({Ilex verticillata}),
bearing red berries.
[1913 Webster] Alder


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  • Alder - Wikipedia
    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]
  • 12 Species of Alder Trees for Your Yard - The Spruce
    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
  • Alder Trees: Leaves, Bark, Flowers, Cones - Identification (Pictures)
    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 | Definition, Description, Tree, Wood, Facts | Britannica
    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)
  • Exploring Alder Trees: Uses and Benefits Beyond Their Ecological Role
    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
  • 15 Types of Alder Trees By Species Region (With Pictures)
    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
  • What Is An Alder Tree: Information About Alder Trees - Gardening Know How
    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 Tree: Key Facts - Forest Wildlife
    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
  • 20 Types of Alder Trees (With Pictures) - AMERICAN GARDENER
    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
  • The Alders - American Trees
    “Alder, the owner of all waterish ground ” Seaside Alder (Alnus maritima, Nutt )—A round-topped tree 15 to 30 feet, with slender branches Bark thin, smooth, light brown; twigs greyish Wood soft, light brown, close grained Buds acute, dark red, ¼ inch long, with silky pubescence





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