Diplazium Sw.


Description of the genus

Large terrestrial plants. Rhizome erect to suberect, often forming a caudex, with strong black roots. Fronds monomorphic, large, tufted, pinnately compound, often with proliferous buds distally along the costa. Stipe not articulated. Lamina herbacious to coriaceous, mostly glabrous, sometimes scaly on rhachis, costae and costules; veins free or anastomosing. Sori linear, elongated, paired; indusia linear, attached along its entire lenght, set back to back, i.e. the one opening outwards, the other inwards.


Derivation of name:  diplazein: to double; referring to the frequently paired sori.

Worldwide: Near cosmopolitan distribution, ± 400 species.



We have 11 taxa in the database for Diplazium.

  • Diplazium esculentum (Retz.) Sw.
  • Diplazium humbertii (C.Chr.) Pic.Serm.
  • Diplazium morogorense J.P.Roux
  • Diplazium nemorale (Baker) Schelpe
  • Diplazium proliferum (Lam.) Kaulf.
  • Diplazium pseudoporrectum Hieron.
  • Diplazium sammatii (Kuhn) C.Chr.
  • Diplazium ulugurense Verdc.
  • Diplazium velaminosum (Diels) Pic.Serm.
  • Diplazium welwitschii (Hook.) Diels
  • Diplazium zanzibaricum (Baker) C. Chr.


  • Crouch, N.R., Klopper, R.R., Burrows, J.E. & Burrows, S.M. (2011) Ferns of Southern Africa, A comprehensive guide. Struik Nature.
  • Jacobsen, W.B.G. (1983) The Ferns and Fern Allies of Southern Africa. Butterworths, Durban and Pretoria.
  • Roux, J.P. (2001) Conspectus of Southern African Pteridophyta.Southern African Botanical Diversity Network Report, 13: 1-222.
  • Schelpe, E.A.C.L.E. (1970) Pteridophyta.Flora Zambesiaca, 0: 1-254.