|European beech (Fagus sylvatica)|
Beech (Fagus) is a genus of deciduous trees in the family Fagaceae, native to temperate Europe, Asia, and North America. Recent classifications recognize 10 to 13 species in two distinct subgenera, Engleriana and Fagus. The Engleriana subgenus is found only in East Asia, distinctive for their low branches, often made up of several major trunks with yellowish bark. The better known Fagus subgenus beeches are high-branching with tall, stout trunks and smooth silver-grey bark. The European beech (Fagus sylvatica) is the most commonly cultivated.
The name of the tree (Latin fagus, whence the species name; cognate with English "beech") is of Indo-European origin, and played an important role in early debates on the geographical origins of the Indo-European people. Greek φηγός is from the same root, but the word was transferred to the oak tree (e.g. Iliad 16.767) as a result of the absence of beech trees in Greece.
Recent classification systems of the genus recognize 10 to 13 species in two distinct subgenera, Engleriana and Fagus. The Engleriana subgenus is found only in East Asia, and is notably distinct from the Fagus subgenus in that these beeches are low-branching trees, often made up of several major trunks with yellowish bark. Further differentiating characteristics include the whitish bloom on the underside of the leaves, the visible tertiary leaf veins, and a long, smooth cupule-peduncle. Fagus japonica, Fagus engleriana, and the species F. okamotoi, proposed by the botanist Chung-Fu Shen in 1992, comprise this subgenus. The better known Fagus subgenus beeches are high-branching with tall, stout trunks and smooth silver-grey bark.
This group includes Fagus sylvatica, Fagus grandifolia, Fagus crenata, Fagus lucida, Fagus longipetiolata, and Fagus hayatae. The classification of the European beech, Fagus sylvatica is complex, with a variety of different names proposed for different species and subspecies within this region (for example Fagus taurica, Fagus orientalis, and Fagus moesica). Research suggests that beeches in Eurasia differentiated fairly late in evolutionary history, during the Miocene. The populations in this area represent a range of often overlapping morphotypes, though genetic analysis does not clearly support separate species.
Within its family, the Fagaceae, recent research has suggested that Fagus is the evolutionarily most basal group. The southern beeches (genus Nothofagus) previously thought closely related to beeches, are now treated as members of a separate family, the Nothofagaceae (which remains a member of the order Fagales). They are found in Australia, New Zealand, New Guinea, New Caledonia, Argentina, and Chile (principally Patagonia and Tierra del Fuego).
- Fagus chienii W.C.Cheng
- Fagus crenata Blume – Siebold's beech
- Fagus engleriana Seemen ex Diels – Chinese beech
- Fagus grandifolia Ehrh. – North American beech
- Fagus hayatae Palib. ex Hayata – Taiwan beech
- Fagus japonica Maxim. Japanese beech, Japanese blue beech
- Fagus longipetiolata Seemen – South Chinese beech
- Fagus lucida Rehder & E.H.Wilson – shining beech
- Fagus orientalis Lipsky – Oriental beech
- Fagus sylvatica L. – European beech
- Fagus × taurica Popl. – Crimean beech
- †Fagus subferruginea Wilf et al. 2005
The European beech (Fagus sylvatica) is the most commonly cultivated, although few important differences are seen between species aside from detail elements such as leaf shape. The leaves of beech trees are entire or sparsely toothed, from 5–15 cm (2–6 in) long and 4–10 cm (2–4 in) broad. Beeches are monoecious, bearing both male and female flowers on the same plant. The small flowers are unisexual, the female flowers borne in pairs, the male flowers wind-pollinating catkins. They are produced in spring shortly after the new leaves appear.
The bark is smooth and light grey. The fruit is a small, sharply three-angled nut 10–15 mm (3⁄8–5⁄8 in) long, borne singly or in pairs in soft-spined husks 1.5–2.5 cm (5⁄8–1 in) long, known as cupules. The husk can have a variety of spine- to scale-like appendages, the character of which is, in addition to leaf shape, one of the primary ways beeches are differentiated. The nuts are edible, though bitter (though not nearly as bitter as acorns) with a high tannin content, and are called beechnuts or beechmast.
Beech grows on a wide range of soil types, acidic or basic, provided they are not waterlogged. The tree canopy casts dense shade, and carpets the ground thickly with leaf litter.
Beech bark is extremely thin and scars easily. Since the beech tree has such delicate bark, carvings, such as lovers' initials and other forms of graffiti, remain because the tree is unable to heal itself.
Beech leaf disease is a disease spread by the newly discovered nematode, Litylenchus crenatae mccannii. This disease was first discovered in Lake County, Ohio in 2012 and has now[when?] spread to over 41 counties in Ohio, Pennsylvania, New York, and Ontario, Canada.
Britain and Ireland
Fagus sylvatica was a late entrant to Great Britain after the last glaciation, and may have been restricted to basic soils in the south of England. Some suggest that it was introduced by Neolithic tribes who planted the trees for their edible nuts. The beech is classified as a native in the south of England and as a non-native in the north where it is often removed from 'native' woods. Large areas of the Chilterns are covered with beech woods, which are habitat to the common bluebell and other flora. The Cwm Clydach National Nature Reserve in southeast Wales was designated for its beech woodlands, which are believed to be on the western edge of their natural range in this steep limestone gorge.
Beech is not native to Ireland; however, it was widely planted from the 18th century, and can become a problem shading out the native woodland understory.
Today, beech is widely planted for hedging and in deciduous woodlands, and mature, regenerating stands occur throughout mainland Britain at elevations below about 650 m (2,100 ft). The tallest and longest hedge in the world (according to Guinness World Records) is the Meikleour Beech Hedge in Meikleour, Perth and Kinross, Scotland.
Fagus sylvatica is one of the most common hardwood trees in north central Europe, in France alone comprising about 15% of all nonconifers.
As a naturally growing forest tree, beech marks the important border between the European deciduous forest zone and the northern pine forest zone. This border is important for wildlife and fauna.
In Denmark and Scania] at the southernmost peak of the Scandinavian peninsula, south-west of the natural spruce boundary, it is the most common forest tree. It grows naturally in Denmark and southern Norway and Sweden up to about 57–59°N. The most northern known naturally growing (not planted) beech trees are found in a small grove north of Bergen on the west coast of Norway. Near the city of Larvik is the largest naturally occurring beech forest in Norway.
Some research suggests that early agriculture patterns supported the spread of beech in continental Europe. Research has linked the establishment of beech stands in Scandinavia and Germany with cultivation and fire disturbance, i.e. early agricultural practices. Other areas which have a long history of cultivation, Bulgaria for example, do not exhibit this pattern, so how much human activity has influenced the spread of beech trees is as yet unclear.
The primeval beech forests of the Carpathians are also an example of a singular, complete, and comprehensive forest dominated by a single tree species - the beech tree. Forest dynamics here were allowed to proceed without interruption or interference since the last ice age. Nowadays, they are amongst the last pure beech forests in Europe to document the undisturbed postglacial repopulation of the species, which also includes the unbroken existence of typical animals and plants.
The American beech (Fagus grandifolia) occurs across much of the eastern United States and southeastern Canada, with a disjunct population in Mexico. It is the only Fagus species in the Western Hemisphere. Prior to the Pleistocene Ice Age, it is believed to have spanned the entire width of the continent from the Atlantic Ocean to the Pacific, but now is confined to east of the Great Plains. F. grandifolia tolerates hotter climates than European species, but is not planted much as an ornamental due to slower growth and less resistance to urban pollution. It most commonly occurs as an overstory component in the northern part of its range with sugar maple, transitioning to other forest types further south such as beech-magnolia. American beech is rarely encountered in developed areas except as a remnant of a forest that was cut down for land development.
East Asia is home to five species of Fagus, only one of which (F. crenata) is occasionally planted in Western countries. Smaller than F. sylvatica and F. grandifolia, Japanese beech is one of the most common hardwoods in its native range.
Beech wood is an excellent firewood, easily split and burning for many hours with bright but calm flames. Slats of beech wood are washed in caustic soda to leach out any flavor or aroma characteristics and are spread around the bottom of fermentation tanks for Budweiser beer. This provides a complex surface on which the yeast can settle, so that it does not pile up, preventing yeast autolysis which would contribute off-flavors to the beer. Beech logs are burned to dry the malt used in some German smoked beers, giving the beers their typical flavor. Beech is also used to smoke Westphalian ham, various sausages, and some cheeses.
The European species Fagus sylvatica yields a utility timber that is tough but dimensionally unstable. It weighs about 720 kg per cubic metre and is widely used for furniture framing and carcase construction, flooring and engineering purposes, in plywood and in household items like plates, but rarely as a decorative wood. The timber can be used to build chalets, houses, and log cabins.
The fruit of the beech tree, known as beechnuts or mast, is found in small burrs that drop from the tree in autumn. They are small, roughly triangular and edible, with a bitter, astringent, or in some cases, mild and nut-like taste. They have a high enough fat content that they can be pressed for edible oil. Fresh from the tree, beech leaves in spring are a fine salad vegetable, as sweet as a mild cabbage, though much softer in texture. The young leaves can be steeped in gin for several weeks, the liquor strained off and sweetened to give a light green/yellow liqueur called beech leaf noyau. As Pliny the Elder noted it in Natural History, it was beechnut that saved the people of Chios from starvation when the town was besieged. The Roman natural philosopher wrote: "(...) there are considerable modifications in the flavour of their fruit. That of the beech is the sweetest of all; so much so, that, according to Cornelius Alexander, the people of the city of Chios, when besieged, supported themselves wholly on mast".
In antiquity, the barks of beech tree were used by Indo-European people for writing-related purposes, especially in religious context. Beech wood tablets were a common writing material in Germanic societies before the development of paper. The Old English bōc and Old Norse bók both have the primary sense of "beech" but also a secondary sense of "book", and it is from bōc that the modern word derives. In modern German, the word for "book" is Buch, with Buche meaning "beech tree". In modern Dutch, the word for "book" is boek, with beuk meaning "beech tree". In Swedish, these words are the same, bok meaning both "beech tree" and "book". Similarly, in Russian and Bulgarian, the word for beech is бук (buk), while that for "letter" (as in a letter of the alphabet) is буква (bukva).
Beech litter raking as a replacement for straw in husbandry is an old nontimber practice in forest management that has been widespread in Europe since the 17th century. Beech has been listed as one of the 38 plants whose flowers are used to prepare Bach flower remedies.
As an ornamental
The beech most commonly grown as an ornamental tree is the European beech (Fagus sylvatica), widely cultivated in North America and its native Europe. Many varieties are in cultivation, notably the weeping beech F. sylvatica 'Pendula', several varieties of copper or purple beech, the fern-leaved beech F. sylvatica 'Asplenifolia', and the tricolour beech F. sylvatica 'roseomarginata'. The strikingly columnar Dawyck beech (F. sylvatica 'Dawyck') occurs in green, gold, and purple forms, named after Dawyck Botanic Garden in the Scottish Borders, one of the four garden sites of the Royal Botanic Garden Edinburgh. Europe is also home to the lesser-known Oriental beech (F. orientalis) and Crimean beech (F. taurica).
- Ancient and Primeval Beech Forests of the Carpathians and Other Regions of Europe
- English Lowlands beech forests
- Sylvatica ecology cycle 'Sylvatic' means 'occurring in or affecting woodland'
- The Weeping Beech
- Beech leaf disease
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