Festuca extremiorientalis Ohwi

This taxon is sometimes treated as an Asian subspecies of the North American Festuca subulata. However, F. subulata is considered here to be a different species, separable by its shorter ligule 0.2–1 mm, weakly 3-veined lemmas, longer awns 5–17 mm, and scabrid palea keels.

Plant loosely tufted; shoots extravaginal. Culms 60–100 cm tall, nodes (2–)3(–4). Leaf sheaths glabrous; auricles absent; leaf blades flat, soft, 10–30 cm × 4–10(–13) mm, glabrous, margins smooth or scaberulous; adaxial to abaxial sclerenchyma strands present, abaxial sclerenchyma in narrow discrete strands; ligule 1.1–2.5(–3.5) mm. Panicle loose, nodding, (8–)12–30 cm; branches (3–)7–15 cm, scabrid, (1–)2 per node. Spikelets 5–8(–9.5) mm; florets 3–4(–5); glumes smooth or scaberulous on midvein; lower glume narrowly lanceolate to lanceolate, 2.5–3.5(–4.5) mm; upper glume lanceolate to broadly lanceolate, 3.5–6 mm; rachilla internodes 0.8–1.1 mm, pubescent; lemmas 5–6(–7) mm, strongly 5-veined, scabrid, apex entire or slightly notched; awns 4–8 mm; palea 5–6(–7) mm, keels smooth. Anthers 1–1.5(–2) mm. Ovary apex moderately or densely hairy. 2n = 28. Fl. and fr. Jun–Aug.

Gansu, Hebei, Heilongjiang, Jilin, Nei Mongol, Qinghai, Shaanxi, Shanxi, Sichuan, Yunnan [Japan, Korea, E Russia].

Forests, valleys, grasslands, riversides; 900–2800 m.

Festuca subulata Trinius var. japonica Hackel; F. subu-lata subsp. japonica (Hackel) Koyama & Kawano.

Festuca extremiorientalis is a species of grass in the family Poaceae. This species is native to Altay, Amur, Buryatiya, China North-Central, China South-Central, Chita, Inner Mongolia, Irkutsk, Japan, Khabarovsk, Korea, Krasnoyarsk, Kuril Is., Manchuria, Primorye, Qinghai, Sakhalin, and Tuva. Is perennial and prefers temperate biomes. This species was first described in 1931.

Festuca extremiorientalis là một loài thực vật có hoa trong họ Hòa thảo. Loài này được Ohwi mô tả khoa học đầu tiên năm 1931.

远东羊茅（学名：Festuca extremiorientalis）为禾本科羊茅属下的一个种。