Forest 44 -Spanish Birch, Silver Birch


Two subspecies of Betula pendula

Silver birches in Forest 44 in autumn by L. Muldoon Silver birches in Forest 44 in winter. Photo by L. Muldoon

Betula pendula subspecies fontqueri    Spanish Birch

Origin of the species name

Betula is the Latin name for the genus and is derived from the ancient Gaul word for 'pitch' which refers to the bituminous content of the bark; pendula is Latin for hanging and refers to the drooping growth habit; fontqueri is named after the Spanish botanist Puis Font i Quer.

Family

Betulaceae

Date planted

August 2008

Lifespan

Unknown.

Bark of Silver birches in Forest 44 (2). Photo by L. Muldoon Bark of Spanish birch tree in Forest 44. Photo by A. Burgess

Leaves of young Spanish birch tree in Forest 44 (2). Photo by A. Burgess

General description 

This is a medium sized deciduous tree. The bark of the young trees is grey, smooth and shiny and then turns white. The serrated triangular leaves give a bright yellow autumn display. The flowers are wind-pollinated catkins which come out before the leaves in early spring and produce small winged seeds. Differs from ssp. pendula in characters of the seed. Height 25m Spread 10m.

Natural distribution and habitat  

The subspecies fontqueri is native to Spain and Morocco where it is found in small populations in dry woodlands in three mountain systems in Spain and the Rif Mountains in Morocco.

Conservation status

The subspecies fontqueri is classified as endangered. The subpopulations are small and dispersed and the spread of housing developments, as well as the decline in water availability, fires, cutting and tourism, pose serious threats. A reintroduction program is being developed at Cordoba Botanic Garden, Spain.

Planting pattern

Planted in wavy lines, following the contours.

Uses

The bark has been used in making baskets, shoes and even as a substitute for paper. The leaves have been used for herbal tea for its diuretic effect.

Further reading

Rushforth, K. (1999). Trees of Britain and Europe. Collins.

HOST FOREST    Betula pendula subspecies pendula    Silver Birch   

Seed catkins of Silver birch tree in summer in Forest 44 Silver birch trees. Photo not from the Arboretum, by L. Hawkes

Origin of the species name

Betula is the Latin name for the genus and is derived from the ancient Gaul word for 'pitch' which refers to the bituminous content of the bark; pendula is Latin for hanging and refers to the drooping growth habit.

Family

Betulaceae

Date planted

August 2008

Lifespan

Silver birches have an expected lifespan of 60-70 years.

Young Spanish birch trees in Forest 44 (4). Photo by A. Burgess

General description 

This is a medium sized deciduous tree. The bark of the young trees is grey, smooth and shiny and then turns white. The serrated triangular leaves give a bright yellow autumn display. The flowers are wind-pollinated catkins which come out before the leaves in early spring and produce small winged seeds. Height 25m Spread 10m.

Natural distribution and habitat

This subspecies occurs naturally in almost all countries of Europe from the Mediterranean to Scandinavia It is most abundant in northern Europe, in almost continuous mixed forests and in fairly large pure stands. In the western and southern parts of the range it is patchy and in the south, silver birch is found mostly at higher altitudes.

Conservation status

It is not classified as a threatened species.

Planting pattern

Planted in wavy lines following the contours.

Uses

The bark has been used in making baskets, shoes and even as a substitute for paper. The leaves have been used for herbal tea for its diuretic effect.

Further reading

Rushforth, K. (1999). Trees of Britain and Europe. Collins.