Alder or Alnus

Alder or Alnus






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Alder



Alnus
A common tree that prefers moist grounds. In Europe there
are two kinds of Alder: the Common or Black Alder and the
Green Alder.



Flowering male napkins of the Alder



The female napkins of the Alder



1 The leaves of the Alder in fall,
With the buds for new leaves and male and female napkins.
2 The flowering male napkin.
3 The flowering female napkin.
4 The Cone.



The Alder after germination.







    Nitrogen and the alder


    The aler prefers moist soil , were it lives
    together (symbiosis) with bacteria that bind nitrogen
    and produces nitrates. Those nitrates are used by
    the alder for its own production of proteins.

    The leaves of the Alder


    The leaves of the Alder strongly resembles the leaves of
    the common Hazel.

    The alnus is a mediumlarge tree.


    male catkins on the right, mature female catkins on the left




    mature and immature female catkins





    The alnus during a frost period in a typically Dutch landscape.




    Two Alders





    Firewood

    This list gives an indication of the quality as a firewood

    Alder fastburning, good firewood.

    Birch good , but burns fast

    Horse chestnut bad quality firewood, hard to ignite.

    Beech very good, but need to be very dry.

    Oak very good

    Lime good.

    Ashvery good firewood

    Mulberry very good , but hard to get

    monkey puzzle woodbad firewood, don't use it

    White poplar smokes, bad firewood

    Black locust or Robiniavery good and exspensive.

    Walnut good , but hard to get

    Yew good.

    Larch bad firewood.



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