African Plant Database

Dioscorea praehensilis Benth.
Protologue : Niger Fl. 536 (1849) 
Information on the genus : Dioscorea
Status for TA : accepted (present)
Synonym(s) Homotypic
 Dioscorea cayenensis var. praehensilis (Benth.) A. Chev.
Synonym(s) Heterotypic
=Dioscorea odoratissima Pax (1892)
=Dioscorea angustiflora Rendle (1899)
=Dioscorea costermansiana De Wild. (1901)
=Dioscorea liebrechtsiana De Wild. (1901)
Ecology and distribution
Trop. Afr.
Biology : Herbaceous twining glabrous vine to 20 m long, less when climbing on low vegetation, usually dying back annually; tuber 1, present alongside withered tuber of previous season, to 5 cm Ø, at least 60 cm long, cylindric, descending vertically; stems right-twining, prickles concentrated on larger, cataphyll-bearing stems, most dense near stem base; leaves opposite, rarely alternate; blade with apex acuminate to long-acuminate (usually longitudinally folded along midrib in herbarium specimens), base truncate to cordate; male inflorescences of 2-8 spikes, simple; female single; capsule pendent to patent, 1,5-2,4x2,8-4,3 cm, glaucous, seeds with wing all around margin.
Ecology : In a broad range of forest and grassland habitats; woodland riverbanks; palm woods; cultivated areas; fallows; termite hills; forest margins; sandy-clayey soils; forest gallery; 200-1800 m alt.
  D. praehensilis figuring in Fl. Eth. & Eritrea 6: 61-62, 1997, and in Sebsebe Demissew & al., Flow. Eth. & Eritrea…: 205-206, 2003, are not identified. The plant is not mentioned by Sebsebe & Nordal in Aloes & other lilies, ed. 2, 2010.

Bibliography for Tropical Africa :
  • Cat. Pl. Vasc. Burkina Faso:60 (2012)
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see under The International Plant Name Index
see under Flora of Mozambique
see under African Plants - a Photo Guide
see under Flora of Zimbabwe
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Record n°11388
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