African Plant Database


Dioscorea bulbifera L.
Family : DIOSCOREACEAE
Protologue : Sp. Pl. 2: 1033 (1753)  
Information on the genus : Dioscorea
 
 
Status
Status for TA : accepted (present)
 
Synonym(s) Homotypic
 Helmia bulbifera (L.) Kunth
 Polynome bulbifera (L.) Salisb.
 
Synonym(s) Heterotypic
=Dioscorea latifolia var. anthropophagorum A. Chev.
=*Dioscorea anthropophagorum A. Chev. (1913)
=Dioscorea bulbifera var. anthropophagorum (A. Chev. ex Jum.) Prain & Burkill ex Summerh. (1931) (MA = accepted; TA = rejected)
=Dioscorea bulbifera var. sativa Prain
=Dioscorea hoffa Cordem. (1895)
=Dioscorea hofika Jum. & H. Perrier
=Dioscorea latifolia Benth. (1849)
=Dioscorea latifolia var. longipetiolata (Baudon) A. Chev.
=Dioscorea longipetiolata Baudon (1913)
=Dioscorea perrieri R. Knuth (1924)
=Dioscorea sylvestris De Wild.
=Dioscorea zara var. var. violacea (Baudon) A. Chev.
=Dioscorea violacea Baudon (1913)
=Dioscorea sativa Thunb. non L.
=Dioscorea crispata Roxb.
=Dioscorea heterophylla Roxb.
=Dioscorea korrorensis R. Knuth
=Dioscorea pulchella Roxb.
=Dioscorea rogersii Prain & Burkill
=Dioscorea sativa var. elongata F. M. Bailey
=Dioscorea sativa var. rotunda F. M. Bailey
 
Taxon infra-specific
Dioscorea bulbifera var. anthropophagorum (A. Chev. ex Jum.) Prain & Burkill ex Summerh. (1931)
 
Ecology and distribution
Trop. Afr.
Biology : Vigorous vine with annual stems 3-12 m long, leaft-twining, terete, unarmed, glabrous; tuber perennial, irregularly ovoid to subglobose, occasionally elongate, sometimes absent; leaves as in D. asteriscus, alternate, petiole to 8 cm long, blade to 14-18 cm long and broad, often much smaller; aerial axillary bulbils subglobose to ovoid, 0,6-3 cm Ø, rounded, poisonous (var. bulbifera, i.e. non-cultivated forms), or angular, flattened, to 10 cm long, brown, edible (var. anthropophagorum, i.e. cultivated forms); inflorescences as in D. asteriscus, simple or compound, except that flowers are sessile, turned toward inflorescence apex in both genders; male flower tepals (sub)erect, 2 mm long, pale pink; female flower ovary not restricted just below perianth; capsule only 1-2,2(-3)x0,1-1,5 cm; seed winged at basal end. – Not possible to distinguish from D. asteriscus in the sterile state.
Ecology : Rain-forest; secondary evergreen bushland; steep slopes in broad-leaved riverine forest and forest edges; persisting in abandoned cultivated ground and by perennial rivers; mopane woodland; swamp sides; sand; forest regrowths; secondary forests; savanna; forest gallery; seasonally flooded sedge meadow; fallows; 0-1500 m alt.
  Domesticated in Africa. However, male material is very rare in or absent from collections in Africa, female races are perhaps preferred in cultivation
  The most widespread Dioscorea species: tropical Africa, extending from W Africa throughout along the coast and penetrating inland along migration and trade and travel routes; also in Asia to Polynesia.

Bibliography for Tropical Africa :
  • Darbyshire, I. Kordofami, M. & al. (2015). The plants of Sudan and south Sudan, An annoted checklist. Kew Publishing

Bibliography for Southern Africa :
  • Food plants of Zimbabwe : 8 (1986).
 
More info on :
see under Jstor_African Plant Initiative
see under chg
see under Fgui
see under The International Plant Name Index
see under The International Plant Name Index
see under The International Plant Name Index
see under African Plants - a Photo Guide
 
Map
carte afrique num 11233
 
Record n°11233
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