African Plant Database

Dioscorea mangenotiana J. Miège
Protologue : Bull. Inst. Franc. Afrique Noire, Ser. A, 20: 40 (1958)
Information on the genus : Dioscorea
Status for TA : accepted (present)
Ecology and distribution
Trop. Afr.
Biology : Vigorous climber, stems, 2,5-4,5 cm Ø at base, right-twining, spiny, internodes long, purple when young; tuber perennial, long-lived, increasing each year with extra lobes, to 35-60 kg in weight, protected by spiny roots; basal leaf reduced to stipules, leathery auricles terminating in a glandular acumen 3-4x0,5 cm, with reflexed margins, purplish; leaves alternate below, then opposite, blade shortly cordate, 4-12x3-10 cm, with red acumen; petiole red, 3-9 cm long; male inflorescence reflexed upwards, to > 60 cm long, of 2 erect spikes 5-9 cm long; female flowers with 6 minute staminodes; capsule 2-3,5x3,5-4 cm; seeds winged all round.
Ecology : Secondary sandy dry forest; forest edges; forest gallery; coastal forest; clayey-sandy soil; 0-1480 m alt.
  Near D. burkilliana, D. praehensilis, D. baya.
More info on :
see under Jstor_African Plant Initiative
see under chg
see under The International Plant Name Index
carte afrique num 11249
Record n°11249
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