Pakistan to Central China: China North-Central, China South-Central, East Himalaya, Myanmar, Nepal, Pakistan, Qinghai, Tibet, West Himalaya as per POWO;
¿ Poaceae / Cyperaceae ?
¿ Grass / Sedge ?

Place, Altitude: Valley of Flowers … about 3210 m asl
Date, Time: 02 AUG 12 … 02:13pm
Habitat: alpine meadow
Habit: erect herb; about 1.5 – 2 m high

🙂 Not sure whether either of these: grass OR sedge !
Please ask for cropped picture(s) if it helps to ID; the pictures have poor focus.

Calamagrostis scabrescens (Deyeuxia scabrescens)