Brachypodium kawakamii Hayata

Endemic to Taiwan on exposed rocks at alpine regions.

Culms densely tufted, up to 35 cm tall, 1 mm in diameter. Blade subcoriaceous, convolute, needle-like, 5-9 cm long, 1-2 mm wide; ligule chartaceous, rounded and fimbriate, 0.5 mm long. Raceme with 1-3 spikelets. Spikelets 8-15-flowered, 1.5-3 cm long; glumes subcoriaceous, nerves conspicuous; the lower 7-9 mm long,narrowly lanceolate, 7-nerved, mucronate; the upper lanceolate, 9-11 mm long, 7-nerved, with a short, hard awn at the apex; lemma 12 mm long, villous-tomentose, narrowly lanceolate, subcoriaceous, distinclty 7-nerved, tipped with a hard, short awn; palea linear-oblong, chartaceous, 2-keeled, ciliate along keels, 8 mm long. Caryopsis 4.5 mm long, apex hairy.

Perennial. Culms densely tufted, very slender, wiry, 10–30 cm tall, fasciculately branched, many-noded. Leaf sheaths smooth, glabrous; leaf blades convolute, needle-like, stiff, 5–9 cm, 1–2 mm wide, abaxial surface glabrous, adaxial surface minutely pubescent with scattered longer hairs; ligule 0.5–1 mm. Raceme composed of 1–3 fertile spikelets with 1 or 2 vestigial spikelets below them. Spikelets 2.5–3 cm, subterete, florets 5–9; glumes glabrous or pubescent, lower glume narrowly lanceolate, 6–10 mm, 5–7-veined, apex acute, upper glume lanceolate, 10–13 mm, 7–9-veined, apex with a short hard mucro; lemmas lanceolate, 10–12 mm, densely pubescent, prominently 7-veined; awn 3–7 mm. Anthers ca. 3 mm. Fl. and fr. Jul–Nov.

Taiwan.

* Exposed rocky mountainsides; ca. 3000 m.

Brachypodium kawakamii là một loài thực vật có hoa trong họ Hòa thảo. Loài này được Hayata mô tả khoa học đầu tiên năm 1907.

川上短柄草（学名：Brachypodium kawakamii）为禾本科短柄草属下的一个种。