For confirmation : 3 posts by 2 authors. Attachments (1) – 2 mb. 
Is this Crinum anoemum?

I think it may be difficult to say anything in vegetative state.
Is it an image from the wild in Bhutan ?
Pl. post flowering images.

Yes, its in wild but i could not capture the Flowers this time. la i will try next time to capture. i will try to post for it confirmation sir