Bromus morrisonensis Honda

Common in the alpine regions.
This speices was thought to be an endemic taxon of Taiwan till 1991. Veldkamp (1991) reported it was also distributed in Malesia and Philippines although it was very rare in the two countries.

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

Perennials. Culms ascending, 28-100 cm tall, 2 mm wide. Leaf-blades chartaceous, linear, 12-28 cm long, 3-5 mm wide, sharp at apex, veins conspicuous, loosely puberulous to glabrous above, villous to glabrous beneath. Sheath villous to glabrous. Ligule membranous, rounded or acute at apex, 2 mm long. Inflorescence an open or contracted panicle, 9-18 cm long. Spikelets with 5-10 florets, elliptical or lanceolate or linear lanceolate, 11-25 mm long, 2-4 mm wide, slightly laterally compressed. Pedicels minutely hispid. Lower glumes membranous on margins, glabrous to minutely hispid, lanceolate to linear-lanceolate, sharp at apex, 4-6 mm long, 1-nerved. Upper glumes chartaceous, broadly lanceolate, sharp at apex or acute to obtuse at apex, 5-8 mm long, shorter than 10 mm, 3-nerved, minutely strigose to glabrous. Florets 8-9 mm long, with rachilla. Lemmas chartaceous, lanceolate to elliptical, margins inrolled, rounded at apex or acute at apex, 8-9 mm long, shorter than 20 mm, with awn, with a awn longer than half to nearly as long as lemma, 3 -nerved, hairy or glabrous, only slightly hairy on the base of nerves. Paleas membranous, linear oblong, round or truncate at apex or acute at apex, 6-7 mm long, 2 -nerved, ciliate on nerves to minutely ciliate on nerves. Callus glabrous. Anthers 2.5 mm long. Caryopsis linear-oblong, 6 mm long, hilum linear.

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.

Distributed in Malesia, Philippines and Taiwan.

Taiwan.

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

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

Bromus morrisonensis là một loài thực vật có hoa trong họ Hòa thảo. Loài này được Honda mô tả khoa học đầu tiên năm 1928.

玉山雀麦（学名：Bromus morrisonensis）为禾本科雀麦属下的一个种。