Scientific Name - Betula alba
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.
Trees and shrubs
Flourensia cernua - tarbush
Flourensia cernua is deciduous shrub, from Chihuahuan Desert. In northern Mexico, the leaves and flower heads were used historically to make a decoction for treating indigestion.
Shrub 3 m high. Leaves disposed in each vertical 3 (4), the busiest peak, linear, 1.5 cm long, acuminata-mucronata, bright green top and white on the inside of the main rib prominent, margins Revol.
Alnus incana (L.) Moench - white alder
Mano tree or shrub that can reach 20 m, with stem often crooked, crown with branches thick, upward, lush foliage, lujerii in young gray, pubescent. Bark smooth, shiny, whitish gray, the old copies, to the base with shallow cracks. Wide elliptical leaves up to ovata, by 4.10 cm long, 4-6 cm wide, rounded to the double needle and lobe, pointed, gray green face, white inside gray, furry, ready alternative.
Robinia pseudoacacia - Acacia
Tree, 25 m high, crown iregulata, oval, open. Maroni stalk, thin, tomato-brown of thorns present 1.5-2.5 cm long. Small buds superimposed. Leaves alternate, imparipenat-compound, 7-19 folio elliptical, obovata, opposite, entire edge, nervatiune pinnate, 4-5 cm long, green or green glauca, are yellow in autumn.
Indigofera jucunda - shrub or small tree, evergreen, native to the forests of Africa, Kwazulu-Natal, near rocks and rivers.
Kallstroemia Max (L.) Hook. & Arn.
Pachira aquatica growing naturally along rivers in Central and South America. Is cultivated in world wide like ornamental, in hedges or solitary. Resistant to drought anf flooding.
The seeds of P. aquatica are delicious raw, boiled or roasted. Young leaves and flowers are also edible. The seeds are high in protein and edible oil.