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Department of Botany

Since 1980

Senna siamea (Lam.) Irwin et Barneby


Manjal konrai

   Botanical NameSenna siamea (Lam.) Irwin et Barneby
   SynonymsCassia arborea. Macfad.; Cassia gigantean D C.
   Common NameEnglish : Ironwood / Tamil : Manjal konrai
   DistributionGlobal : India and South East Asia
Indian : Throughout India
   DescriptionSmall to medium sized tree up to 15-20 m tall, with a short bole and low branching high crown. Leaves, pinnate, alternate, rachis 25-30 cm long, with a marked furrow, leaflets oblong, rounded at the base and at the apex, slightly retuse. Upper side dark green and shining, underside dull-green, shortly haired. Inflorescence raceme, 15-30cm long. Flowers yellow, up to 3.5 cm long, in dense racemes at the end of the shoots, and in their axils. Fruit glabrous, brown, slightly curved pods in dense clusters, 25cm long with 20 seeds in each.
   Flowering Fruiting periodAugust - May continuous flowering up to October
   UsesUsed in intercropping systems, wind breaks and shelterbelts.
   Medicinal UsesUsed to treat typhoid fever, jaundice, abdominal pain, menstrual pain and is also used to reduce sugar level in the blood.
   Tamil NameManjal konrai