11b. Stipa caucasica subsp. glareosa (P. A. Smirnov) Tzvelev, Novosti Sist. Vyssh. Rast. 11: 20. 1974.
沙生针茅 sha sheng zhen mao
Stipa glareosa P. A. Smirnov, Bull. Soc. Imp. Naturalistes Moscou 38: 12. 1929; S. caucasica f. desertorum Roshevitz; S. caucasica subsp. desertorum (Roshevitz) Tzvelev; S. caucasica var. desertorum (Roshevitz) Tzvelev; S. glareosa var. lang-shanica Y. Z. Zhao; S. langshanica (Y. Z. Zhao) Y. Z. Zhao.
Plant delicate, up to 20 cm tall; leaf blades 0.25–0.5 mm in diam., outer surface usually scabrid; glumes 2–3.5 cm; awn 4.5–7 cm.
Stony mountain slopes, sand dunes, gravel plains; 600–5100 m. Gansu, Hebei, Henan, Nei Mongol, Ningxia, Qinghai, Shaanxi, Xinjiang, Xizang [Afghanistan, Kazakhstan, Kyrgyzstan, Mongolia, Russia (Siberia), Tajikistan].
Stipa langshanica appears to represent a small, local variant from a mountain range in Nei Mongol. The type has not been seen.