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Silver birch

A spindly tree of heathland and moorlands, and dry and sandy soils, the silver birch is well known for its paper-thin, white bark. It is a great coloniser and can quickly spread in an area.

Enw gwyddonol

Betula pendula

Pryd i'w gweld

January to December

Species information

Ystadegau

Height: up to 30m

Statws cadwraethol

Common.

Ynghylch

The silver birch is a familiar, small, spindly tree with thin branches and papery bark. It is found on heathland, moorland and mountainsides, as well as on dry, sandy soils. In spring, the male catkins (or 'lamb's tails') turn yellow and shed their pollen, which is carried by the wind to the short, green, female catkins that appear on the same tree. One of the first trees to recolonise the UK after the last glacial period, it is an opportunistic species; its seeds are produced in huge numbers and dispersed easily by the wind.

Sut i'w hadnabod

Birches are easily recognised by their white, papery bark. The silver birch has 'drooping' branches and triangular leaves, with jagged teeth that grow from hairless leaf stalks. The leaves of the similar downy birch grow from hairy stalks and more rounded; it also has more upright branches.

Dosbarthiad

Widespread.

Roeddech chi yn gwybod?

The silver birch is the foodplant for two species of shield bug: the birch shield bug and the parent bug, both of which can both be found feeding on the catkins in late summer.