European Aspen

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European Aspen

 

(Populus tremula), a dioecious deciduous tree of the genus Populus of the family Salicaceae. The European aspen is up to 35 m tall and has a diameter of up to 1 m. It is a round-headed or broadly conical tree. The gray-green leaves are nearly orbicular or orbicular-rhomboidal; there are large, irregular notches along the edges. The petioles are very compressed, thus causing the leaf blades to sway even in a mild breeze. The flowers are in hanging cylindrical catkins, which measure 4–15 cm long. The fruit is a capsule. The flowers appear before the leaves. The tree grows rapidly and has a life-span of 80 to 100 years. It often dies from fungus disease.

The European aspen is distributed in northern Eurasia, where it is mixed in coniferous and broad-leaved forests. In the steppes it forms groves and is found on the slopes of ravines. The tree often grows at the site of burnt out forests and at logging sites. It is planted in parks and as protective plantings. The European aspen is especially decorative in the autumn, owing to the bright carmine or yellow color of its leaves. The soft, lightweight, yellowish white timber is used in the manufacture of matches and cellulose; it is also used to make crates and various small articles.

REFERENCE

Derev’ia i kustarniki SSSR, vol. 2. Moscow-Leningrad, 1951.

V. N. GLADKOVA

References in periodicals archive ?
The small fraction of these that have been dated range in age from 3900 to 8400 cal yr BR As a rule, the peat contains plant macrofossils easily identifiable as common understory forest species and tree species such as Picea abies (8450, 8380, and 8180 cal yr BP), Larix sibirica (7320 cal yr BP), Sorbus aucuparia (8640 cal yr BP), Alnus incana (8000 cal yr BP), and Populus tremula (8590 cal yr BP) (Kullman and Oberg, 2012; Appendix 1).
Este trabajo se ha llevado a cabo en el marco del proyecto "Bases para la utilizacion y conservacion de Populus tremula y P.
3] and indolylbutyric acid applied to cuttings of Populus tremula L.
Elstner, (1995) "Antioxidative properties of alcoholic extracts from Fraxinus excelsior, Populus tremula and Solidago virgaurea".
Populus tremula, the source of EVI-2, contains salicylate glycosides such as salicin, which is converted in the body into salicylic acid with anti-inflammatory activities.
1992) transformaram o hibrido Populus tremula x Populus alba com o gene crs1-1, que codifica a enzima Acetatolactase Sintase, conferindo resistencia ao herbicida Clorosulfuran.
Quercus robur dominated in all stands (90-100% of the relative timber volume), except in the Salenieki stand where in 1927 it was reported as absent; the dominant trees there were Betula pendula and Populus tremula.
MOR and MOE values of Pterocarya fraxinifolia LVLs are higher than those of Populus euramericana, Populus tremula, Populus nigra, and similar to those of Alnus glutinosa.
Rhamnus frangula, Populus tremula, Juniperus communis, and Sorbus aucuparia.
A related species is Populus tremula, which is aspen that grows in Europe, Asia and North Africa.
Betula20 Betula pendula, Populus balsamifera, planted Hippophae Populus tremula rhamnoides, Swida sp.
ABSTRACT: A long history of forest use and management in Sweden has promoted conifer-dominated forests at the expense of deciduous trees such as Populus tremula, Salix caprea, and Sorbus aucuparia.