Ophioglossum costatum R.Br.

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Ophioglossum costatum

Photo: Petra Ballings
Hippo Pools, Umfurudzi Safari area

Ophioglossum costatum

Photo: Petra Ballings
Hippo Pools, Umfurudzi Safari area

Ophioglossum costatum

Photo: Petra Ballings
Hippo Pools, Umfurudzi Safari area

Ophioglossum costatum

Photo: Petra Ballings
Hippo Pools, Umfurudzi Safari area

Ophioglossum costatum

Photo: Petra Ballings
Hippo Pools, Umfurudzi Safari area

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Species details: Click on each item to see an explanation of that item (Note: opens a new window)

Synonyms: Ophioglossum aphrodisiacum Welw. ex Hook. & Baker
Ophioglossum felixii Tardieu
Ophioglossum fibrosum Schumach.
Common names:
Rhizome globose, up to 15 mm in diameter; roots dens, radiating, wiry. Leaves up to 4 but mostly 2, held at 60-80° from the horizontal, dull green. Petiole up to 5.5 cm long, subterranean for most of its length (70-90%). Sterile lamina up to 75 × 30 mm, lanceolate to narrowly ovate in outline, apex pointed to rounded, base rounded to narrowly wedge-shaped, with an apparent pseudo-midrib formed by elongated meshes of the venation; fertile segment up to 25 cm long, inserted at or just above the base of the lamina. Sporangia up to 50 pairs.
Derivation of specific name: costatum: ribbed, referring to the apparent pseudo-midrib on the sterile lamina.
Worldwide distribution: Widespread in southern and tropical Africa, Madagascar, India and Australia.
Botswana distribution:
Growth form(s): Terrestrial.
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters: Display spot characters for this species

Burrows, J.E. (1990). Southern African Ferns and Fern Allies. Frandsen, Sandton. Page 48. (Includes a picture).

Burrows, J.E. & Burrows, S.M. (1993). An annotated check-list of the pteridophytes of Malawi Kirkia 14(1) Page 82.

Crouch, N.R., Klopper, R.R., Burrows, J.E. & Burrows, S.M. (2011). Ferns of Southern Africa, A comprehensive guide Struik Nature Pages 128 - 129. (Includes a picture).

Da Silva, M.C., Izidine, S. & Amude, A.B. (2004). A preliminary checklist of the vascular plants of Mozambique. Southern African Botanical Diversity Network Report No. 30 Sabonet, Pretoria Page 12.

Germishuizen, G. & Meyer, N.L. (eds) (2003). Plants of southern Africa: an annotated checklist. Strelitzia 14 Page 77.

Jacobsen, W.B.G. (1983). The Ferns and Fern Allies of Southern Africa. Butterworths, Durban and Pretoria. Pages 166 - 167. (Includes a picture).

Kornas, J. (1979). Distribution and ecology of the Pteridophytes in Zambia Polska Akademia Nauk Wydzial II Nauk Biologicznych Pages 36 - 37.

Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 8.

Roux, J.P. (2001). Conspectus of Southern African Pteridophyta. Southern African Botanical Diversity Network Report 13 Page 32.

Roux, J.P. (2009). Synopsis of the Lycopodiophyta and Pteridophyta of Africa, Madagascar and neighbouring islands Page 33.

Schelpe, E.A.C.L.E. (1970). Pteridophyta Flora Zambesiaca Page 38. (Includes a picture).

Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 15.

Other sources of information about Ophioglossum costatum:

Our websites:

Flora of Caprivi: cultivated Ophioglossum costatum
Flora of Malawi: Ophioglossum costatum
Flora of Mozambique: Ophioglossum costatum
Flora of Zambia: Ophioglossum costatum
Flora of Zimbabwe: Ophioglossum costatum

External websites:

African Plants: A Photo Guide (Senckenberg): Ophioglossum costatum
BHL (Biodiversity Heritage Library): Ophioglossum costatum
EOL (Encyclopedia of Life): Ophioglossum costatum
GBIF (Global Biodiversity Information Facility): Ophioglossum costatum
Google: Web - Images - Scholar
iNaturalist: Ophioglossum costatum
IPNI (International Plant Names Index): Ophioglossum costatum
JSTOR Plant Science: Ophioglossum costatum
Mansfeld World Database of Agricultural and Horticultural Crops: Ophioglossum costatum
Plants of the World Online: Ophioglossum costatum
Tropicos: Ophioglossum costatum
Wikipedia: Ophioglossum costatum

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2014-24

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2024). Flora of Botswana: Species information: Ophioglossum costatum.
https://www.botswanaflora.com/speciesdata/species.php?species_id=100240, retrieved 25 May 2024

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