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Alkaloids and lignans from zanthoxylum usambarense and zanthoxylum chalybeum
(2011)
The genus Zanthoxylum (Rutaceae) sometimes called 'prickly ashes' because of the
shape of the leaves is represented by7 species in Kenya (l). Traditionally Zanthoxylum
usambarense has been used to treat coughs, rheumatism, ...
Flavonoids of the roots and stem bark of erythrina burttii and erythrina abyssinica
(2011)
The genus Erythrina belongs to the subfamily paplinoideae of the family Leguninosae.
This genus is widely distributed in tropical and subtropical regions of the world and is
represented by 125-200 species. The presence ...