Schelpe, E.A.C.L.E. (1970)
Description of the genus
Rhizome erect, without scales, covered with a mass of persistent winged leaf-bases. Lamina 2-pinnate, with the fertile pinnules borne at the apex; veins free. Fertile pinnules markedly different, namely much narrower, than the sterile pinnules. Sporangia borne in dense clusters on both sides of fertile pinnules.
Worldwide: 10 species in temperate regions; also in tropical E Asia and Africa
Other sources of information about Osmunda:Flora of Mozambique
(electronic Plant Information Center): OsmundaFlora Zambesiaca
web site: OsmundaGoogle
(Germplasm Resources Information Network) taxonomy for plants report for OsmundaIPNI
(International Plant Names Index): OsmundaKew 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: Osmunda.
http://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=10, retrieved 24 May 2013