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Pakistan | Family List | Dioscoreaceae | Dioscorea

Dioscorea bulbifera Linn., Sp. Pl. 1033. 1753. Parker, l.c. 516; A.H. Khan, l.c.21.

Dioscorea bulbifera

Credit: M.Y. Saleem

  • Dioscorea sativa auct. non Linn.: Hook. f.

    Tubers mostly large, globose or pyriform. Stems glabrous, twining clockwise bearing numerous brown warted bulbils c. 2.5 cm in diameter. Leaves alternate, 4-5 cm long, 2.5-13.5 cm broad, ovate, more or less deeply cordate at the base, long acuminate, 9-nerved, petiole 2.5-12 cm long. Male spikes slender, drooping, 6.5-10 cm long, clustered in the axils or sometimes panicled; stamens 6, antheriferous. Female spikes simple, fascicled in the leaf axils, 10-25 cm long. Capsule c. 2 cm long, 1 cm broad, oblong. Seeds winged at the base.

    Fl. Per.: July-September.

    Type: Described from Indo-Pakistan subcontinent.

    Distribution: A plant of the foothills ascending to about 1000-2000 m in the tropical and sub-tropical parts of Asia & Africa.

    Occasionally eaten. It is reported to contain a poisonous glycoside.


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