18
Feb
2009
Sophora davidii
Trees and shrubs | Magnoliopsida
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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.

Sophora davidii - thorny shrub, 1,5-3 m high. Glabra pubescent or low strain. Stipele brown spinescente, 2-3 mm long, is linifica time. Leaves alternate, 2-6 cm long, imparipenat-compound, petiole 5-10 mm long, 2.5 cm long rachides, 5-8 pairs of Folio, opposite or sub-opposite, plus foliole terminal, 5.12 x 2 -- 4 mm, obovata, mucrOnati. Raceme terminal, short wing, pedunculate, peduncle 1 cm long, rachides 4 cm long, 7-12 flowers; bractei triangulation, sericeu, 1 mm long. Flowers 2 cm length <7 mm long calyx, dark purple, pubescent, lobes much shorter than the tube, 2 superior lobes obtuse, 3 lobes narrower and acute. Corola white to blue-violet; vexilum 20 x 7 mm, spatulate, the attenuated wing 16 x 4 mm, 15 x 3 mm hull. 10 free stamens. Ovary 1.5 cm long, pubescent. Blooms in June. Pods 3.6 cm long, 3-5 mm wide, brown, pubescent.

Culture - Minimum temperature -20 ° C. Grows well on poor soils, sunny. Adapt well in wet soil conditions but must be well drained.

Multiplication - the seeds. Is maintained for 24 hours in water at 40-70 ° C to germinate quickly. Hothouse soil can be removed in time have 2-3 leaves. Multiplication by drajoni, from mid July to September.

Diseases and pests - areUnreal plants can be attacked by Tetranychus spp .. Can be countered by natural, biological Phytoseiulus persimilis and Feltiella persicae, along with atmospheric humidity and with a good spraying leaves with water.

Sophora davidii - is a shrub with woody trunk and branching, do not require any maintenance cuts. In Yunnan is grown for vegetable protection of animals and birds.

Cultivation and varieties - 'Hans Fliegner' - dark blue flowers, slowly ascending.

References

George Ernest Brown - The pruning of Trees, Shrubs, and Conifers - Timber Press, 2004

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

Hilier Nurseries - The Hilier Manual of Trees and Shrubs - David & Charles PLC, 2007

John Ferguson & ndAsh, The Gardener's Year - Frances Licoln, 2006

Peter Hanelt, Institute of Plant Genetics and Crop Plant Research - Mansfeld's Encyclopedia of Agricultural and Horticultural Crops - Springer, 2001

Thomas Graham Stuart - Ornamental Shrubs, climbers and Bambole - Frances Lincoln, 2006

www3.interscience.wiley.com

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