Bromus porphyranthos Cope

Bromus porphyranthos differs from Bromus himalaicus Stapf by its longer glumes, densely hairy spikelets and simple panicle. Only one specimen is known from the Pakistan area but no doubt the species will eventually be found in Kashmir.

Perennial. Culms loosely tufted, 50–70 cm tall. Leaf sheaths glabrous or hairy when young; leaf blades 10–20 cm × 3–5 mm, abaxial surface and margins scabrid, adaxial surface hairy. Panicle simple, lax, 10–20 cm; branches arched, often with a single apical spikelet. Spikelets 18–25 mm, florets 5–9; rachilla internodes later exposed; glumes pubescent, lower glume 12–15 mm, 1-veined, apex acuminate, upper glume 14–17 mm, 3-veined, apex shortly aristiform; lemmas 12–16 mm, 7-veined, densely pubescent throughout, apex shortly 2-toothed, awned from sinus; awn 12–18 mm, stout, scabrid, straight, later recurved; palea shorter than lemma, keels ciliate, abaxial surface minutely hairy. Anthers 1.5–2 mm. Fl. May–Aug.

Loosely tufted perennial; culms up to 70 cm high. Leaf-blades up to 20 cm long, 3-4mm wide, hairy above, scabrid beneath; sheaths glabrous or the lowest hairy when young. Panicle 10-20 cm long, very loose, the branches long and flexuous, usually each with a single spikelet. Spikelets lanceolate, 5-9-flowered, 18-25 mm long excluding the awns, the lemmas overlapping at first, later gaping and partially exposing the internodes; glumes pubescent, the lower lanceolate, acuminate, 12-1.5 mm long, 1-nerved, the upper lanceolate, shortly awned, 14-17 mm long, 3-nerved; lemmas narrowly lanceolate in side view, the lower 11-16 mm long, densely pubescent all over, 7-nerved, shortly 2-toothed, awned from between the teeth; awn stout, scabrid, 12-18 mm long, erect or recurved; palea shorter than the lemma, ciliolate on the back and keels; anthers 1.5-2 mm long.

Himalaya (Kumaun to Sikkim).

Xizang, Yunnan [Bhutan, India (Sikkim), Nepal, Pakistan].

Distribution: Pakistan (N.W.F.P.); Himalayas eastwards to Nepal and Sikkim; Kumoan.

3800-4500 m

Sandy places, meadows; ca. 3700 m.

Bromus himalaicus Stapf var. grandis Stapf in J. D. Hooker, Fl. Brit. India 7: 359. 1896 ["1897"]; B. grandis (Stapf) Melderis (1978), not (Shear) Hitchcock (1912).

Bromus porphyranthos là một loài thực vật có hoa trong họ Hòa thảo. Loài này được Cope mô tả khoa học đầu tiên năm 1982.

大药雀麦（学名：Bromus porphyranthos）为禾本科雀麦属下的一个种。