Hoya linearis

Hoya linearis Wall. ex D.Don, Prodr. Fl. Nepal. 130 1825. ;

China (NW-Yunnan), Nepal, Bhutan, Sikkim, Myanmar [Burma] (Kachin), India (C- to E-Himalaya, NE-India, Darjeeling) as per Catalogue of Life;

SK1229 24 JUNE 2018 : 8 posts by 2 authors. Attachments (2)
Location:  Sakiyong Khasmahal, Pedong Reshi Rd, India
Date: 16 May 2018
Altitude: 5550 ft.
Habit : Wild
Only leaves !

What can it be? 

No idea at all. May be Fern sp. ?

It's Gesneriaceae or one of those things - I just can't quite remember the name of this easily recognisable spermatophyte genus, sorry.
Can't find those places on a map - sounds like Sikkim, but please always tell us the State, as I keep saying!

... has suggested it as Hoya linearis and looks like correct. https://garden.org/plants/view/114258/Hoya-Hoya-linearis/

Hoya!  Yes, that's right - I keep seeing it but never remember the name.