12
Jan
2009
Caragana arborescens
Trees and shrubs | Magnoliopsida

Scientific name - Caragana arborescens Lam.

Synonyms - Caragana Caragana Karst.

Popular names - Caragana, Siberian Peashrub, Gi Jin Er.

Distribution and Habitat - originating from Siberia, growing close to rivers.

Description - deciduu shrub, 2-5 m high. Bark gray young branches are yellow-green. Leaves alternate; paripenat-compound, 4-6 pairs of folio oval-elliptic, 10-35 mm long, dark green in summer and autumn yellow, 5-10 cm long; spinescente Stipe. Flowers solitary, Corola yellow, 20-25 mm long, increase the armpit leaves, blooming from May to June. Fruit pods, yellow-brown becoming gray-brown, smooth, develop in the June-July. Seeds reniforme, elliptical to ovoid, rounded top and bottom, 4.4 x 2.8 mm, surface smooth, glossy, red-brown. 2n = 16

Growth rate - slowly.

Tolerant - frost, seceta, pollution and wind.

Requirements - grows on any soil, but to be well drained, sunny but rather exhibits and semiumbra tolerate.

Propagation - the seeds fall. The seeds must be stratified 15 days at 5 ͦ C.

Cultivars and varieties - 'Albescens',' Cuneifolia ',' Grandiflora ',' Lorbergii ',' Nana 'Pendula', 'serum', 'Walker'.

Properties and Uses - can be used in groups and protection curtains.

C. arborescens var. inermis - branches without thorns.

Because well-developed system radically, Cragana arborescens can be used for soil erosion control

Curiosity - in some parts of the USA is considered invasive species.

In Grand Bretagne was introduced in 1752.

In Korea is grown on small scale as plantof medicine for roots. In Canada and USA is planted in forest protection.

References

Andrei Aleksandrovich Fedorov - Flora of Russia - CRC, 2002

Elizabeth J. Czarapata - Invasive Plants of the Upper Midwest - University of Wisconsin Press, 2005

France Royer, Richard Dickinson - Wildflowers of Edmonton and Central Alberta - The University of Alberta Press

Harrison L. Flint - Landscape Plants for Eastern North America - Wiley, 1997

Michael A. Dirr - Dirr's Hardy Trees and Shrubs - Timber Press, 1997

Ronald Houtman, Royal Horticultural Society Booskoop Staff - Variegates Trees and Shrubs - Timber Press, 2004

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