Martins, E.S. et al. (2003)
Papilionoideae FZ 3(7)
Description of the genus
Herbs (in ours). Stipules present, entire; stipels 0. Leaves imparipinnate with entire leaflets. Flowers in axillary racemes. Calyx with 5 teeth, the upper 2 shorter than the lower 3. Standard glabrous. Upper stamen free, the other 9
united for most of their length. Style glabrous
Worldwide: 1,750 species, one of the largest genera in the world, mainly northern temperate areas but extending to tropical African mountains.
Other sources of information about Astragalus:Flora of Mozambique
(electronic Plant Information Center): AstragalusFlora Zambesiaca
web site: AstragalusGoogle
(Germplasm Resources Information Network) taxonomy for plants report for AstragalusIPNI
(International Plant Names Index): AstragalusKew Herbarium catalogue
Copyright: Mark Hyde, Bart Wursten and Petra Ballings, 2002-13
Hyde, M.A., Wursten, B.T. & Ballings, P.
. Flora of Zimbabwe: Genus page: Astragalus.
http://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=735, retrieved 19 May 2013