alder

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alder

(ôl`dər), name for deciduous trees and shrubs of the genus Alnus of the family Betulaceae (birchbirch,
common name for some members of the Betulaceae, a family of deciduous trees or shrubs bearing male and female flowers on separate plants, widely distributed in the Northern Hemisphere. They are valued for their hardwood lumber and edible fruits and as ornamental trees.
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 family), widely distributed, especially in mountainous and moist areas of the north temperate zone and in the Andes. The black alder (A. glutinosa) is an Old World species now naturalized in E North America. Its bark, still used for dyes and tanning, was formerly considered medicinal; its wood is useful chiefly as charcoal. A. rugosa, the speckled alder, forms extensive swamp thickets in Eurasia and North America. The red alder (A. rubra), the largest tree of the genus, is the most important hardwood timber tree in its native region, the Pacific coast of North America. Alder trees are classified in the division MagnoliophytaMagnoliophyta
, division of the plant kingdom consisting of those organisms commonly called the flowering plants, or angiosperms. The angiosperms have leaves, stems, and roots, and vascular, or conducting, tissue (xylem and phloem).
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, class Magnoliopsida, order Fagales, family Betulaceae.

alder

[′ȯl·dər]
(botany)
The common name for several trees of the genus Alnus.

alder

A moderately light-colored, light-weight hardwood that changes to flesh color or light brown when dried; often stained to simulate cherry, mahogany or walnut; often used as plywood core and crossbanding.

alder

1. any N temperate betulaceous shrub or tree of the genus Alnus, having toothed leaves and conelike fruits. The bark is used in dyeing and tanning and the wood for bridges, etc. because it resists underwater rot
2. any of several similar trees or shrubs
References in periodicals archive ?
This is a meadow forest usually developed as a second forest strip, occasionally hygrophilous and in chain-like succession with alder tree forests, mostly of Senecioni bayonnensis-Alnetum, but also of Valeriano pyrenaicae-Alnetum beyond the reach of its optimum territory, and even with alder and poplar forests of Salici neotrichae-Populetum nigrae.
Six red alder trees were used in this investigation and a collaborative anatomical study by Oregon State University (OSU).
fir, hemlock, cedar and alder trees. Bare of foliage, twisted alder
Alder trees enhance crop productivity and soil microbial biomass in tea plantations.--Appl.
OK, I accept that Aigburth means "Oak Tree Hill", based on the Norse word "Eikberg", and that Allerton means a place of Alder trees from the old English "Alder Tun", with "tun" or "ton" meaning field or enclosure.
Case in point: Japanese beetles, which benefit from higher carbon dioxide levels and warmer winters, recently decimated Moore's red veined alder trees and stripped the leaves off her variegated porcelain berry vines.
A SMALL CLUMP OF SNOW DROPPED FROM A TREE BRANCH ONTO THE BACK OF MY NECK AS I KNELT IN A PATCH OF SMALL ALDER TREES. WELCOME TO PRINCE OF WALES ISLAND, I THOUGHT, AS THE SNOW SLOWLY MELTED AND RAN DOWN MY BACK.
So the hay fever season can now start as alder trees release pollen in January and continue till the last of the nettle pollen disappears in late September.
worked with an arborist at the University of Alaska Fairbanks to come up with a plan to harvest local seeds from black spruce, white spruce, birch, and alder trees.
Complimented with mature trees at the front and roadside, the garden at the front is bordered by a mature hedge and a number of Douglas fir and alder trees. At the rear/side of the property the hedges are also mature combinations of laurel and holly.
Could I claim this island, become a 30-minute Crusoe amid the din?" Having reached his island, Prof Bonnett found a mix of maple and alder trees and self-seeded shrubbery.