I don't know the exact paper but search for faux grasscloth, here's one. It could also be a silk effect, can't really see it that well (!) but Andrew Martin does one in marl which is a light grey http://www.wallpaperdirect.com/products/Eijffinger/Grasscloth-Light-Grey/111907?gclid=COrh3IP0gcwCFeQp0wodWt0I3A

Claire

Agree with above comments. If you did use a heavy duty lining paper it would need to be applied horizontally but even then you may get problems of the texture showing through, unevenness at the joins where it won’t adhere because of the texture, bubbles or lifting because of the extra layers, and it might make it difficult to remove later on because of the extra adhesive and paint. I would either paint with a trade Matt paint so the texture is not so obvious or strip and re do.

Here? https://www.spoonflower.com/en/wallpaper/8291462-waltz-flowers-by-alenkakarabanova