28
Dec
2010
Betula alba
Trees and shrubs | Magnoliopsida
4
0

Scientific Name - Betula alba

Synonyms -

Popular names - mesteacan.

Distribution and Habitat - originating from northern Europe to eastern Asia, increases in association with petreae Quercus, Fagus sp. and Abies sp.

Description - tree 20 m tall, stem right, cylindrical, 40-60 cm diameter. Bark white, smooth, flaking in circular strips to form the trunk ritidom black, deeply cracked. Crown irregular, thin shoots, stems pendent, warty, glabra. Leaves rare diamond-ovate, 3-7 x 3-4 cm, top acuminata, base cunea or cropped, double-side evenings, stems 2-3 cm pendulum. Unisexuat Flowers monoecious, clustered in Amenti, the men formed fall 2-3 to the top of the shoots, female flowers appear in spring, in the form of elongated cones. Blooms in April-May, anemofila pollination.

Rate of growth - and growing rapidlyin youth.

Tolerance - do not tolerate shading and dry atmosphere. Resistant to cold and air pollution.

Requirements - Reaven soils in sunny exhibitions.

Propagation - by seeds, in September, immediately after harvest. Spread seeds on the soil surface and then cover it with leaves.

Cultivars - elegans'''- thin branches, recurbate from the base, pendula stems, small leaves.

Properties and Uses - ornamental species, crown shape and color through decorative bark, in parks and gardens.

Yellowish white wood without heartwood, light, elastic, soft.

The bark is rich in tannins, is used in cosmetics.

Photos
Top
See also
Top
Trees and shrubs
Berberis vulgaris

Bush single, thorny, 2-4 m high. Branches long, arched, with many thorns collected 3; in young yellow, then brown, yellow-gray in old age. Yellow Wood. Leaves simple, outdated, short stalks; oblung language, dark green, glossy on top, the more open on the underside, edge finely toothed, are inserted into the beam to ascela thorns.

 
Dombeya tiliacea (Endl.) Planch.

Shrub or small tree, 3.10 x 2.7 m, trunk branched, bark dark gray, rough. Leaves alternate, 4.9 x 3-7 cm, three-lobed basis cordata, margine teeth face bottom covered with fine hairs, stalks pelos, 1-3 cm. Flowers campanulata, 3-4 cm diameter, axillary or terminal, solitary or grouped in a raceme, petals white, obovata.

 
Punica granatum - pomegranate

Genus Punica includes two species of shrubs or small trees, native of the Mediterranean region, North Africa, Iran, and Afghanistan. Leaves opposite, oval-lanceolata language around the edge. Flowers red-orange, yellow or white. Edible fruit.

 
Santolina chamaecyparissus - limbricarita

Perennial species, stem 10-60 cm tall, erect or pendence; nefloriferi stalk is green-gray-tomentos; lujerii floriferi are simple, without leaves before blossom. Pectinata-toothed leaves often to penatsectate. Involucre 6-10 mm wide, hemispherical, subtruncat or not, or slightly rounded at the base; bractei lanceolata-ovata, Carina, the interior with round top. Flowers arranged in the capital, bright yellow.

 
Wisteria sinensis - Chinese wisteria

Wisteria sinensis - is considered invasive in some places around the globe. In most cases become established in places where it is cultivated ornamental.

Where there is danger of becoming glycineinvasive is better to be replaced with Aristolochia macrophylla, Bignonoa capreolata, Campsis radicand, Lonicera sempervirens, Wisteria frutescens.

 
Magnoliopsida
Solidago caesia - blue-stemmed goldenrod

Solidago box to - perennial species, native to North America, grows naturally in dry soils on roadsides.

 
Stachys Byzantine

Stachys Byzantine - perennial species, native to southeastern Europe and southwestern Asia, grows on dry slopes at the edge of forests, up to 2000 m altitude.

 
The new species of Chirita (Gesneriaceae) from Yunnan, China

Genus Chirita (Gesneriaceae) comprises 110 species distributed in southern China and Vietnam.

In 2004, one of the authors (HJ) found a species of Chirita while working or on the field of tropical forest in southern Yunnan province.

 
Jasminum nudiflorum Lindl.

Decidua species native to China. Green stems, 60-90 cm high, 1-2 m diameter, edges, form adventitious roots. Brownish-red buds, ovoizi. Decidue leaves, opposite, pinnate-compound, 3 leaflets oblong, Sesi. Flowers solitary, six petals, 1-2 cm in diameter. Flowering period from January to March, before leaf. Baca fruit, fleshy, ripening black.

 
Campanula glomerata

Campanula glomerata species native to Europe, growing in arid environments, pastures and forest edges, 0-1500 m altitude. Seen as ornamental species, ideal for who wants to create a wild flower garden.

 
Comments
Top
comments powered by Disqus
   Add to iGoogle
Last posts

Categories

Links