10
Jan
2010
Davidia involucrata var. involucrata
Trees and shrubs | Magnoliopsida
0
0

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
Top
Trees and shrubs
Firmiana simplex

Firmiana simplex - also known as Sterculia platanifolia, was named in honor of Karl Joseph von Firmiana (1718-1782).

Firmiana simplex - ornamental species grown in parks and gardens in shady and protected from winds exhibitions.

 
Ribes uva-crispa - agris, grapes bear

Thorny shrub, 1 m high. Gray-brown bark is exfoliating. Rich stem branched divaricata. Branches long, thin, gray-brown with yellow top, pubescent glabrata in youth and adulthood. Leaves simple, cordiforme, 3-5 lobed, toothed, long stalks

 
Pimenta racemosa (Mill.) JWMoore

Shrub or small tree, 7.5-15 m high; ritidom thin, scaly, producing a scaly trunk. Leaves pungent rum, obovata to elliptic, 3-15 x 1.2-7.5 cm, acute to round at the narrow top, coriacee.

 
Ceratonia siliqua L.

Dioecious tree, 8 meters high. Body iregulat, erect with the latita. Gray-brown bark with longitudinal fissures. Vast and dense crown. The branches are fine young tomentoase become glabrata with timpu. Leaves persistent, alternate, paripenat-compound, with 2.5 pairs of Folio, ovata, coriacee, margin entire, glossy dark green on the upper

 
Fraxinus excelsior - Ash

Deciduu tree, 30-40 m high, stem right, branched at the top, crown ovoid, large and rare. A young bark is smooth, light gray green and mature forms at the thick crust with a small crack, dark color. Lujerii round, flattened at the bud, glabra, green-olive trees, with dark buds.

 
Magnoliopsida
Westringia rigida

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.

 
Angophora hispida Blaxell

Shrub or small tree, 4-5 m high. Gray-red bark at first smooth, exfoliating in due course. Leaves opposite, Sesia or short stalks, cordiform, 5-10 x 2.5-4.5 cm, pale green, pubescent. 3.7 flowers in a corymb, 10-15 cm diameter. Sepa free (dialisepal), green, petals free (dialipetal), white cream. Blooming in January. Fruit capsule.

 
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.

 
Viburnum tinus

Popular names: English - Laurestinus Viburnum, tinus Laurel, Tinus laurifolius, Italian - lentaggine, Lauro-tino, alloro-tino, laurentino.

Viburnum tinus is originally from southern Europe and the Mediterranean.

 
Sophora davidii

Sophora derived from Arabic and means tree with pea flowers. Specific epithet is in honor davidii Abbe Armand David, a French missionary and naturalist who contributed to the knowledge of flora and fauna of China.

Sophora davidii is from Hubei, China, where it grows on rocky places at elevations of 1 000 - 3 500 m.

 
Comments
Top
comments powered by Disqus
   Add to iGoogle
Last posts

Categories

Links