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Scientific Name - Alnus glutinosa (L.) Gaertn Synonyms - Betula alnus var. glutinosa, Alnus barbata, Betula glutinosa, Alnus rotundifolia. Popular names - anin, ontano nero, european alder, common alder. Distribution and Habitat - a species native to temperate zones, it grows along rivers from 0-1200 m altit. Description - deciduu tree, to 25 m tall, bark brown, smooth, with many lenticels on young, gray and fissured in small, irregular plates mature, pyramidal crown. Buds ellipsoid to obovoid, 6-10 mm, 2-3 scales. Leaves alternate, petiolate, elliptic, veins pinnate, margin double evenings, the base obtuse or cunea, obcordat tip or round, dark green, glabra on top, light green and slightly pubescent on the underside, 1-2 cm long stalks. Flowers monoecious, male flowers red-brown, 6-12 cm, erect ovoid female flowers,Amenti in green, 1-3 cm long, grouped 3-5, stamens 4, bilocular ovary. Infloresye in February-April. Fruit samara wing. 2n = 28 Growth rate - fast. Longevity 60-150 years. Tolerance - tolerance to moderate drought. Requirements - prefers moist soil, sunny or partially shaded exhibitions. Propagation - by seeds after stratification. Pests and diseases - Phytophthora sp. Prociphilus tessellatus, Psylla flocosa, Trichiosoma triangulum, Saperda obliqua. Cultivars - 'Aurea' yellow leaves; 'Imperialis' deep and pinnate leaves lobata. Properties and Uses - tamplaerie and wood used in construction. Curiosity - the genus name is derived from celtic 'the lan' = nearly as bad, because genu plant habitatHis growing near rivers, the species name 'glutinosa' refers to the resin that covers the young leaves and stems. Root system and form symbiosis with bacteria fix atmospheric nitrogen in the soil. The bark contains a tannin that is used to prepare ink.
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Perennials, voluble. Stem thin, green, 2 m height. Leaves opposite, language ovat-lanceolata, acuminata peak, the cordata, margin entire, lobate or iregulat needle, 15 x 10 cm, short stalks, 3.5 ribs. Blue flowers with yellow, white on the outside, 8 x 8 cm, arranged in bouquets with individual pedicel 4-5 cm long, corolla tube 3 cm long Popular names: English - Red-edged Dracaena, Madagascar Dragon-Tree, Hawaii - money tree. Dracaena marginata Lemarck is an evergreen species native to Madagascar, was imported into Europe in the XVII century. Bush by 6 m high, formed more vertical stems. Leaves arranged spiral, simple, Sesia, entire, linear, evergreen, green with reddish margins, 15-45 x 0,7-3 cm; nervatiuni parallel. Tree, 15-20 m high and 0.7 m trunk diameter, with round crown and rich foliage. Strain usually crooked and gnarled, mature bark cracks forming small and irregular, gray-yellow color with lighter spots, characteristic. Young shoots, yellow-brown, buds sit opposite the gate, children, joined the stalk and Chile. African Sparmannia - shrub or small tree, native of southern Africa, as a species grown across the globe or outdoor ornamental pot. Genus includes 80 species, the most popular are H. macrophylla, H. arborescens, H. paniculata and H. quercifolia. Shrub or voluble species with opposite leaves. Flowers solitary or grouped in inflorescences type corymb, Raceme. Ovary compound, 2-10 rags, below. Capsule truncata. Seeds numerous, ribbed. Digitalis grandiflora - Perennial species, pubescent; natural range is Eurosiberian, increases in forest edge, and boschetelor, from plain to 1600 m altitude. Dalechampia spathulata is a shrub of the Euphorbiaceae family. Most species belonging to the genus Dalechampia multiply naturally by seeds. Tree, strain 25 m high and 60 cm in diameter. Bark dark gray or gray-brown, longitudinal cracks and is exfoliating. Branches reddish brown or gray-brown, densely glandular Vilo and resin. Petiole 1.5-3.0 cm, densely dotted Vilos resin. Digitalis purpurea - ornamental species, the size and elegant in almost any soil type and situation. Digitalis purpurea digitalina contains a powerful drug used for heart disease. London was introduced in the 1650s in the pharmacopoeias. Spartium junceum - native to the Canary Islands and Mediterranean Basin, grows in arid places, ground limestone, from plain to 600-2000 m, in association with Quercus pubescens, Quercus ilex, Fraxinus ornus, Cotinus coggygria. |
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