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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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