Dioscorea belophylla

Dioscorea belophylla (Prain) Voigt ex Haines, Forest Fl. Chota Nagpur 530 1910. (Syn: Dioscorea nummularia var. belophylla Prain; Dioscorea sagittata Royle);
 
spear-leaved dioscorea • Bengali: chupri alu • Hindi: तुरर turar • Kannada: ಕಾದು ಗೆಣಸು kaadu genasu • Marathi: जंगली मटोळ jangli matol, कडु कंद kadu kand, नंद कंद nand kand • Sanskrit: शङ्खालुका sankhaluka;
 
 
https://08511630493324166816.googlegroups.com/attach/f0aef6ac9aa1ca50/4787506842_ee13117842_b.jpg?part=0.3&view=1&vt=ANaJVrGcsrCerxOY-IhWsvOCFuplSvCZUkrCY7I16vAj0oS0vzFu4vcNfPEjNpphbhwGRUuRRyy9c48dJAKEPO5T6FkFaLKvHO92iMktI62AGqeBTqBy8yY
https://08511630493324166816.googlegroups.com/attach/f0aef6ac9aa1ca50/4786878003_052021a196_b.jpg?part=0.2&view=1&vt=ANaJVrGkYVfwqJ4BPzSwiZ6M6P0BWdlu9lH37h8OTfxs9SKMyDsafI9J4Q7g-MNpew0HxHash0p4yIAqwV6KvEFUP_iaPXcHWpwx9gWyQdtQBl0kuSfn3gM
https://08511630493324166816.googlegroups.com/attach/f0aef6ac9aa1ca50/4787517694_5363d43fd6_b.jpg?part=0.1&view=1&vt=ANaJVrEGCjmAF-52f4NICilel_vDhh6gMA8PgrkCrQ_I5852KhPO6bTxNbysNj_uUbZSCAWMbu9Z613RX9cDc2kP9aNC4HNntUpuMx4qydmOkKwIF6dNSp4
Dioscoreaceae (yam family) » Dioscorea belophylla
Synonym: Dioscorea glabra
dy-oh-SKOR-ee-uh -- named for Pedanios Dioscorides, 1st century Greek pharmacologist
bel-oh-FIL-uh -- spear or arrow-like leaves
Native of: India, Pakistan
Edible use (WILD):
... tubers (as VEGETABLE) ... ... tribal folks of Melghat Forest ... ethnoleaflets <http://www.ethnoleaflets.com/leaflets/edibles4.htm> 

 
https://groups.google.com/group/indiantreepix/attach/c998e374c1c70/DSC_0322%20copy.JPG?part=0.1&authuser=0&view=1
 
SK 2226 16 October 2019 : 11 posts by 4 authors. Attachments (2)- around 900 kb each. 
Location: Chalnakhel, kathmandu, Nepal
Altitude: 1570 m.
Date: 14 September  2019
Habit : Wild
Long leaf in Dioscorea bulbifera ? 
Could be but not sure! Images not so good.
I may be an optical illusion being side views. would be nice to have some enface views
It was also on a edge of the road beyond reach !
oh
I also more inclined towards it after going through comparative images and other closely related species. Leaf venation and aerial bulbils appear close.
Flora of China states that leaves alternate, simple; petiole 2.5--5.5 cm; leaf blade broadly cordate, 8--15(--26) × 2--14(--26) cm, glabrous, margin entire or slightly undulate, apex caudate-acuminate.
Flora of Pakistan states that 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.
GBIF gives 8017 occurrences (showing how common it is). 
Also check the following species as per keys in Flora of Pakistan:

2 (1)Stem twining anticlockwise. Leaves opposite Dioscorea belophylla
+Stem twining clockwise. Leaves alternate (3)
    
3 (2)Leaves glabrous on both sides. Female spikes in clusters, many flowered. Capsule longer than broad. Seeds winged at the base Dioscorea bulbifera
+Leaves glabrous above, pubescent along the veins and the veinules beneath. Female spikes solitary few-flowered. Capsule broader than long. Seeds Winged all round Dioscorea deltoidea

Leaves appears to be opposite ? is it so ? If so, pl. check Dioscorea belophylla
Yes, opposite leaves. ... is exactly on the mark. 
I guess ... is right and listed in Nepal !
Dioscorea belophylla (Prain) Voigt ex Haines

 
https://08511630493324166816.googlegroups.com/attach/ccc5b17df77e6/DSC_0465%20copy.JPG?part=0.1&view=1&vt=ANaJVrE_Lr24R5xknqwF4cO7OeRUbTsDs5Mh2RaXSVHeBnZDy2djnr1jdXL8b2nvYMzw9C5QP2RpYsZ4NNaFTSMyF0rIYETseOx8MLH-XmgqBXBi21V7ZKU
https://08511630493324166816.googlegroups.com/attach/ccc5b17df77e6/DSC_0464%20copy.JPG?part=0.2&view=1&vt=ANaJVrGubEJG8cd-u_TyVzfVTmPJ8PfX-W-aQ49yBLDikfXwAQnHO_xV28zsOBd3e7wqmsJejCy2kS457DFM-rNq3traeXvg-goFXhh2ZvKmKs8xlhoDvjI
https://08511630493324166816.googlegroups.com/attach/ccc5b17df77e6/DSC_0463%20copy.JPG?part=0.3&view=1&vt=ANaJVrH0wkjD8aLh6zV1enWjJYODH1Aj93mEKAM2BItYMvG2fyr2KQz4VYWsDKIImN9neWmWkv3SdvnO5ro8obZR9f5SAJvoTEzC776nV-ZMhcyExaS4r6M
https://08511630493324166816.googlegroups.com/attach/ccc5b17df77e6/DSC_0466%20copy.JPG?part=0.4&view=1&vt=ANaJVrHgrEMD6xXWC5YdPP40fFWGDZuyh0Qo7eAEGtMIL16ocs0S--m_2v2sfAAoTlDJ6YcYDf61cKqJ3SpFvaV2zxpjCTcVtVE0s1wcp7wc3nj5YOgU2Mw
SK 2237 22 October 201 : 4 posts by 2 authors. Attachments (4)- 1mb or more. 
Location: Naichal, Gundu, Bhakltapur 
Date: 15 September 2019
Elevation: 1862 m.
Habit : Wild
Dioscorea belophylla (Prain) Voigt ex Haines ??
Attachments (1)- 3 mb.  
Attachments (1)- 6 mb.
ok
I guess ID is correct !
Yes. Appears so as per images at SK 2226 16 October 2019


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