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Denumire stiintifica – Davidia involucrata var. involucrata Sinonime – Denumiri populare – Taubenbaum, handkerchief tree, dove tree, gong tong, albero dei fazzoletti. Distributie si Habitat – originar din sud-vestul Chinei, unde creste la 1200 – 1600 m altitudine. Descriere – arbore pana la 20 m inaltime; coroana la inceput conica apoi devine neregulata, ramuri orizontale. Scoarta gri-maronie. Mugurele terminal are forma ovoida, 6-7 mm lungime, acuminat, rosu-brun inchis. Mugurii laterali 6-8 mm lungime. Frunze altene, lung petiolate, lat-ovoida, 8-16 cm lungime, acuminate, baza cordiforma, nervuri evidente, verde pe partea superioara, ± hirsute pe partea inferioara, stipele absente. Flori lung pedunculate, flori rosii grupate in capitul, 1-2 cm diametru, 2 bractee, 20-25 cm lungime, la inceput verzi dar devin albe odata cu maturitatea florilor; bracteele cad la sfarsitul antezei; rolul bracteelor este de a proteja polenul de ploaie. Infloreste in aprilie-mai. Fruct drupa, elipsoidala, mezocarp carnos, contine pana la 8 seminte. 2n = 21 Rata de crestere – moderat-repede, aproximativ 0.5 m pe an, si poate ajunge la 7-8 m in 20 de ani. Tolerante – insorirea si semiumbra. Cerinte – prefera soluri bogate, umede, bine-drente, pH 6.5 – 7. Management – necesita udari regulate. Propagare – prin seminte, se planteaza intregul fruct deoarece coaja protejeaza semintele de uscare, care poate inhiba germinarea semintelor. Germinarea are loc dupa 5-8 luni. Puietii trebuie protejati de inghet. Boli si Daunatori – nu se cunosc probleme serioase. Parteneri de gradina – Rhododendron sp. Cultivaruri – Proprietati si Utilizari – poate fi cultivata ca specie ornamentala in parcuri si gradini. Curiozitati – Davidia involucrata a fost descoperita in 1869 de catre Armand David (1826-1900) un franciscan francez, si a fost introdusa in Europa si numit in onoarea sa in 1904 de catre Ernest Wilson.Florile sunt bogate in nectar si atrag diferite tipuri de insecte polenizatoare precum Apis sp., Halictus sp., Lasioglossum sp. si Xylocopa sp. Bibliografie Dina M. Miller - 400 Trees and Shrubs for Small Spaces – Timber Press, 2008 John Simmons – Managing the Wet Garden – Timber Press, 2008 Kim E. Tripp, J. C. Raulston – The Year in Trees – Timber Press, 2001 Peter Loewer – The Evening Garden - Timber Press, 2002
See also
Daphne mezereum - deciduu shrub, native of Europe and Western Asia, cultivated as an ornamental shrub. All species of the genus Daphne are toxic. Contact with fruit juice or resin skin irritation. Scientific name, Helianthemum numularium, derived from the Greek Helios = sun and the Latin word indicating the currency, numumus = currency, because the flowers that sparkle in sunlight like a golden coin. Genus Felicia was named the Cassini AHG in 1818 by Felix, a German official at Regensburg who died in 1846. Felicia amelloides first cinerary amelloides was named by Linnaeus in 1763 and in 1894 named Felicia amelloides. Callistemon citrinus is a shrub native to eastern Australia but is widely cultivated in tropical to warm temperate regions. When crushed, the leaves emit a lemon-like scent. Mespilus - derived from Greek, 'mÄ—sos' - half, and 'pilo' - ball, referred to as fruit. Germany - derived from wild specimens present in Central Europe. Harpephyllum caffrum - evergreen tree, endemic to southern Africa, Eastern Cape to KwaZulu-Natal and southern Mozambiqului, grows in coastal forests. Undergrowth of 15-30 cm height. Leaves persistent, linear, dark green, 4-8 mm long, 4 on each ordered verticil. Campanulata Flowers arranged in raceme; Corola gamopetala, 4-6 mm long, dark pink, rarely white Herbaceous perennial, stems pubescent, erect, branched dichotomy. Leaves opposite, the parties to lobate-acute, 5-7 lobed, margin evening. Flowers symmetric radiator Corola blue-purple, 5 petals obovata, 2 cm, 5 sepa lanceolata, mucronata, ovary superior, 10 stamens united at the base. Blooms in June-August. Himalayan region increases spontaneously up to altitudes of 700-1500m, along rivers, valleys shady, with precipitation ranging from 1000 to 2500 mm. It is found in forests with species deciudue and semi-evergreen. Grow on poor quality land, alluvial. Tamus communis is a species whose rhizome is used glibly and traditional human medicine, with diuretic properties and purgative. |
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