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Pakistan | Family List | Asclepiadaceae | Vincetoxicum

3. Vincetoxicum canescens (Wind.) Dcne. in DC., Prodr. 8:523. 1844. Boiss., Fl. Or. 4:52. 1879; Ali & Khatoon l.c. 63.

S.I. ALI

  • Asclepias canescens Willd.
  • Cynanchum canescens (Wind.) K. Schum.
  • Cynanchum glaucum Wall.
  • Vincetoxicum glaucum (Wall.) Rech. f.

    Perennial undershrub, c. 15-70 cm tall, erect to twining, pubescent. Leaves 4-7 cm x 1.8-6 cm, ovate-lanceolate or cordate, glabrous to pubescent, entire, acute to acuminate. Flowers clustered in the leaf axils. Pedicels 4-5 mm long. Calyx lobes c. 1.5 mm long, lobes oblong to lanceolate, acute. Corolla c. 4 mm long, cream to greenish, lobes hairy on the inner surface. Corona lobes 5, obtuse. Follicles 5-6 x 1-1.5 (-2) cm, gradually tapering towards the tip.

    Fl. Per.: June-September.

    Lectotype: Herb. Willdenow 5265 (B).

    Distribution: Nepal, Western Tibet, Kashmir, Pakistan, Afghanistan westward to Greece.

    A variable species; Rechinger f. (Biol. Skr. 10,3:79.1958) has discussed the variation of Vincetoxicum glaucum, which he maintains as a separate species, and its relationship to Vincetoxicum canescens.


     

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