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 ?
Data showing consistency of rapid onset of migraine prevention and improvements in most bothersome migraine symptoms and patient reported outcomes data presented at AAN Annual Meeting: In May 2019, Alder presented efficacy data highlighting the consistency of the rapid onset of migraine prevention across four clinical trials with eptinezumab at the 71st American Academy of Neurology (AAN) Annual Meeting in Philadelphia, PA from May 4-10, 2019.
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Coun Kim McGuinness, Newcastle City Council's cabinet member for culture, sport and public health, said: "Our city has a rich history of important intellectual figures like Joshua Alder and it is only right that their significant contributions to society are recognised.
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In conjunction, the Alder condensate will be exported via the Forties Pipeline System to Grangemouth terminal and gas exported to the Scottish Area Gas Evacuation terminal at St Fergus, near Peterhead, Scotland.
A good environmental choice, alder is reportedly the only commercial species west of the Rocky Mountains with the capability to fix atmospheric nitrogen, according to information posted on Oregon State University's website.
Bob Stoker, secretary of Huddersfield TUC, said: "No-one has been held accountable for the death of Christopher Alder. For 16 years his family have been asking for answers and those answers have been denied them."