Definitions

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  • proper noun A taxonomic genus within the family Betulaceae — the alders and related trees.

Etymologies

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Examples

  • The species also has been described as Alnus jorullensis H.B.K. by Carlson and Dawson (1985).

    Chapter 4 1990

  • The botanic name Alnus is the equivalent Latin name.

    Find Me A Cure Mukul 2010

  • Moist montane rainforest is found from 2,300 m to 3,600 m and comprises species such as Alnus acuminata, Lomatia hirsuta (IK), Randia boliviana (IK) and Clethra cuneata (IK).

    Rio Abiseo National Park, Peru 2008

  • Tall willow (Salix spp.) and alder (Alnus fruticosa) shrubs as well as dwarf birch (Betula exilis and B. nana) form dense thickets in the southern part of the tundra zone and often have outlier populations that extend far to the north in favorable habitats [18].

    Implications of current species distributions for future biotic change in the Arctic 2009

  • The small areas of woodlands in Greenland, dominated by birch and willow in the south and alder (Alnus spp.) in the valleys of the Western Settlement, were highly valued.

    Land tenure and management in the boreal region 2009

  • The higher ground supports stands of Salix, Populus, Alnus and Quercus.

    Danube Delta Biosphere Reserve, Romania 2009

  • Consequently, tundra and taiga with abundant alder (Alnus spp.) covered more of Labrador and northern Québec than at present [67].

    Historical changes in freshwater ecosystems in the Arctic 2009

  • From 1,700 m to 2,300 m, there is a belt of mixed forest with Chinese hemlock Tsuga chinensis, pines Pinus tabulaeformis and P. armandii, three species of maple Acer yui, A. erianthum and A. davidii with Alnus nepalensis, Juglans sigillata and Betula alnoides and an understorey of arrow bamboo.

    Huanglong National Scenic Area, China 2009

  • Principal forest species include Scots pine Pinus silvestris, Norway spruce Picea abies, hornbeam Carpinus betulus, little-leaved lime Tilia cordata, oak Quercus robur, sycamore Acer platanoides, maple Acer spp., ash Fraxinus excelsior, downy and white birch Betula pubescens and B. verrucosa, aspen Populus tremula and black alder Alnus glutinosa.

    Belovezhskaya Pushcha National Park, Belarus 2009

  • However, poorly-drained sites contain muskegs and low lying areas along river channels contain alder (Alnus spp.), cottonwood (Populus trichocarpa), and Alaska paper birch (Betula papyrifera).

    Northern Pacific coastal forests 2008

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