27
Apr
2009
Senna corymbosa
Green Pharmacy | Trees and shrubs | Magnoliopsida
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Scientific name - Senna corymbosa (Lam.) Irwin & Barneby

Synonyms - Cassia corymbosa Lamarck, Cassia crassifolia Ortega.

Popular names - Argentina Senna, fedegoso, rama negra sen del campo, shower tree.

Distribution and Habitat - originally from Brazil, Argentina and Uruguay.

Description - evergreen shrub, 2-3 m high, stem thin, highly ramified, almost glabru. Leaves alternate, petiolate, membranous, paripenat compound, 2-3 pairs of folio; stipele linear, obsolete, or oblong-folio oblonga lanceolata, 5 x 1 cm, top acute or obtuse, base round and asymmetrical, the ventral green, glabra . Flowers pentamere, dialipetale, hermaphrodite, zigomorfe their joint corymb raceme, loose, terminal or axillary, yellow calyx unequal SEPA, obovata,5 cm, green, Corola with petals obovata, unequal stamens spatulate androceu 3 and 7 stamens fertile ovary gineceu with higher glabru, unicarpelar, unilocular, polispermic. Noimbrie and blooms in May. Fruit pods, cylindrical pendence, 10-12 cm long, round in cross section generally indehiscenta.

Tolerances - suffer damage following frosts.

Requirements - grows well in moist soil but well-drained, moderately fertile, in full sun. During growth, moderate moisten and apply liquid fertilizers monthly, winter is often wet.

Management - old plants would be severely clipped spring, to force growth in November, but not cut the trunk at ground level.

Propagation - by seeds, it looks to 18-24 ˚ C, Spring. By division, Spring. The semi-lignificati root cuttings in summer.

Properties and Uses - In Argentina esyou grown as a medicinal plant. In the USA and Mexico is planted in areas affected by erosion.

The leaves have laxative properties, and external use is used as emollient and analgesic in the form of poultices. Decoction of leaves is laxative.

References

Constance Rogers, David J. Rogers - Woody Ornamentals for Deep South Gardens - University Press of Florida, 1991

Ernst Schmidt, Mervyn Lotter, Warren McCleland, Jacana Education - Trees and Shrubs of Mpumalanga - Jacana Media, 2002

Gustavo Aparicio, Eduardo Haen - 100 árboles Argentina - Albatros Ediciones, 2001

John H. Wiersema, Blanca Leon - World Economic Plants - CRC, 1999

Kirsten Albrecht Llamas - Tropical Flowering Plants - Timber Press, 2003

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

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