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Alnus rubra is the largest species of alder in North America and one of the largest in the world, reaching heights of 20 to 30 metres (66 to 98 ft). The official tallest red alder (as of 1979) stands 32 m (105 ft) tall in Clatsop County, Oregon (US). [7]
Red alder is the Pacific Northwest's largest alder and the most plentiful and commercially important broad-leaved tree in the coastal Northwest. Groves of red alder 25 to 50 centimetres (10 to 20 in) in diameter intermingle with young Douglas-fir forests west of the Cascades, attaining a maximum height of 30 to 33 m (100 to 110 ft) in about ...
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.
Aesculus × carnea (Red Horse-chestnut) - introduced; Aesculus glabra (Ohio Buckeye) Aesculus hippocastanum (Common Horse-chestnut) - introduced; Ailanthus. Ailanthus altissima (Ailanthus) - introduced; Alnus (alders) Alnus glutinosa (Black alder) - introduced; Alnus incana (Speckled alder) Alnus rubra (Red alder) Alnus serrulata (Hazel alder ...
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Alnus: alders; Alnus acuminata: Andean alder Betulaceae (birch family) Alnus alnobetula: green alder Betulaceae (birch family) Alnus cordata: Italian alder Betulaceae (birch family) Alnus cremastogyne: long-peduncled alder Betulaceae (birch family) Alnus formosana: Formosan alder; Formosa alder Betulaceae (birch family) Alnus fruticosa ...
A list of tree species, grouped generally by biogeographic realm and specifically by bioregions, and shade tolerance. Shade-tolerant species are species that are able to thrive in the shade, and in the presence of natural competition by other plants.
The mites leave the gall in autumn and spend the winter in empty alder cones or bark crevices. [2] [3] Species of tree galled include common alder (Alnus glutinosa), grey alder (Alnus incana) & subsp. rugosa + tenuifolia, x pubescens, red alder (Alnus rubra) and green alder (Alnus alnobetula). [4]