African Plant Database


Dioscorea burkilliana J. Miège
Family : DIOSCOREACEAE
Protologue : Bull. Inst. Franc. Afrique Noire 20: 48 (1958)
Information on the genus : Dioscorea
 
 
Status
Status for TA : accepted (present)
 
Ecology and distribution
Trop. Afr.
Biology : Climber with annual spiny right-winding stems 5->20 m long, 0,7-2,5 cm Ø at base, not rooting at nodes when in contact with the soil; corm well developed, often very long (up to 1 m) and heavy (> 10 kg), on its undersurface presence of numerous fibrous tubers (that break off easily), usually up to 15 cm long, 2-3 cm Ø, some tubers end in a globular structure (50-200 g weight) containing a yellow starchy tissue which is edible; roots unarmed; skin dark; leaves opposite, sometimes alternate; stipules alternate, broadly triangular, 1-1,5 cm long; petiole 4-11 cm long, slender; blade ovate, 5-16x4-12,5 cm, apex acuminate-glandular, base cordate or rounded with swelling on the margin near the petiole (acarodomatia); inflorescences primrose: male 2-7 in fasciculate spikes or paniculate racemes at apex of branches, 27-45 cm long, leaves bract-like, 0,75-1 mm long; female 1 or in pair, to 20 cm long in fruit; capsule 1,5-3 cm long, 1,8-3,5 cm Ø; seeds spherical.
Ecology : Cultivations; fallows; forest edges; gallery; semi-deciduous moist rain-forest; secondary forests; clayey-sandy soils; 200-2200 m alt.
  Very difficult to distinguish from D. minutiflora on dried material. Also similar to D. smilacifolia. Near D. pynaertii.
  Also in Angola ? Madagascar ? (fide N’Kounkou & al., 1993). Distribution (our map) in Centr. Afr. Rep., Congo-Brazzaville and Zaire doubtful (confusion with other species ?).
 
More info on :
see under Jstor_African Plant Initiative
see under The International Plant Name Index
see under Tropicos.org. Missouri Botanical Garden
 
Map
carte afrique num 11259
 
Record n°11259
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