玉山雀麦 yu shan que mai

?Bromus piananensis (Ohwi) L. Liu; ?B. remotiflorus (Steudel) Ohwi var. piananensis Ohwi.

Perennial. Culms tufted ca. 30 cm tall, ca. 1 mm in diam. Leaf sheaths densely pubescent; leaf blades ca. 15 cm × ca. 3 mm; ligule ca. 0.5 mm. Panicle spreading, ca. 15 cm; branches 5–8 cm, each bearing 2–4 spikelets in upper part. Spikelets 20–25 mm, florets 9–11; rachilla ca. 2 mm, shortly hairy; lower glume narrow, ca. 5 mm, 1-veined, upper glume ca. 7 mm, 3-veined; lemmas 7–9 × ca. 1.2 mm in side view, thickly chartaceous, 5-veined, intermediate veins inconspicuous, awned from apex; awn 5(–9) mm, straight; palea slightly shorter than lemma, keels sparsely ciliate. Anthers ca. 2 mm. Fl. and fr. Jul–Aug.

* Grassy places on gravel slopes; ca. 2800 m. Taiwan.

The identity of Bromus piananensis is uncertain. The type, a specimen from Taiwan, has not been seen.