Scientific name - Ailanthus altissima

Popular names - cenuser, castor false, Tree of Heaven, Chinese Sumac.

Distribution and Habitat - natural habitat in China and Korea, at 0-2000 m altitude. In Europe it was introduced in 1740 in Paris by a Jesuit missionary. Philadelphia was introduced by William Hamilton in 1784.

Description - tree 12-15 m high, round crown in his youth, rare, and latita, stem short, with few branches thick, upward. Bark smooth, brown, gray, thin, finely cracked. Mugurele terminal is absent, lateral buds were 3 mm long, round, brown, fluffy. Lujerii young are thick, fine hairy, yellow-brown, with large lenticele. Leaves alternate, imparipenat-compound, 40-60 cm long, with 13-25 Folio, ribbed, ovata lanceolata, 7-12 cm long, blue inside, glabra; onthiol smooth, round, swollen at the base. Flowers yellow-green, small, polygamous, of 0.7-0.8 cm diameter in panicule terminal, 10-20 cm long, 3.5 sepa, 5 petals, 10 stamens in male flowers, 2-3 in flowers hermaphrodite; 5.6 rags, ovary superior. Blooms in June-July. Fruit Samara, 3-5 cm long. Compressed seed, plant, have red-brown color, remain on tree in winter.

Growth rate - fast. Longevity, 40-50 years.

Tolerances - sensitive to frost, tolerate drought, air pollution.

Requirements - rather loose, deep soil, sunny exhibitions.

Management - in areas where invasive Ailanthus altissima is, shearing crown drajonilor induce growth, the best way to combat the ceachimica. Herbicides applied in spring, after leaf emergence.

Propagation - by seeds, root cuttings and layers. The seeds can be kept in place two yearsdried without losing germination. Tree become reproductive after 10-20 years.

Diseases and pests - Armillaria mellea, Atteva punctella, Botryosphaeria dothidea, Cytospora ailanthi, Fusarium lateritium, Hyphantria cunea, Nectria coccinea, Samia cynthia, Verticillium ALBO-atrum, Verticillium dahliae,

Properties and Uses - species can be used for determining slopes and slopes, degraded land.

Yellowish white wood, although it works well, has limited use, is soft, durable and less brittle. Species oras, with a potential production of 300 kg / ha / year.

By crushing the leaves emit an unpleasant odor.

Other species - Ailanthus excelsa (grown in dry places in northern India), Ailanthus grandis(fast-ascending tree of northern India, bark smooth, narrow crown), Ailanthus malabaricum (small tree of southern India, but grows in other tropical parts of Asia).

References

C. Colston Burrell - Native Alternatives to Invasive Plants - Brooklyn Botanic Garden, 2006

Carla C. Bossard, John M. Randall, Marc C. Hoshovsky - Invasive Plants of California Wildlands - University of California Press, 2000

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

John Eastman, Amelia Hansen - The Book of Field and Roadside - Stackpole Books, 2003

John R. Hartman, Thomas P. Piron, Mary Ann Sall - Piron's Tree Maintenance - Oxford University Press, 2000

Richard DeGraaf, Paul E.Sendak - Native and Naturalized Trees of New England and Adjacent Canada - UPNE, 2006