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FOC | Family List | FOC Vol. 22 | Poaceae | Littledalea

4. Littledalea racemosa Keng, Contr. Biol. Lab. Chin. Assoc. Advancem. Sci., Sect. Bot. 9: 136. 1934.

扇穗茅 shan sui mao

Perennial, rhizomatous. Culms solitary or tufted, 25–40 cm tall, ca. 2 mm in diam. Leaf sheaths loose, papery, smooth, glabrous; leaf blades flat or loosely convolute, 3.5–22 cm × 2–5 mm, abaxial surface glabrous, adaxial surface puberulous, subacute; ligule 1–5 mm. Panicle 7–16 cm, usually reduced to a lax raceme of 3–9 spikelets; branches unbranched, flexuous, smooth, lower binate, each bearing 1 or 2 spikelets, lateral spikelets on pedicels ca. 1 cm or more long. Spikelets wedge-shaped, 2.2–3.2 cm, purple and golden brown, florets 5–8; rachilla smooth; glumes narrowly lanceolate to elliptic, apex acute to erose, lower glume lanceolate, (3–)7–9 mm, upper glume broadly lanceolate or elliptic, 12–15 mm; lemmas narrowly elliptic-oblong, lowest 1.4–2.7 cm, papery, membranous, smooth or scaberulous near margins and apex, apex rounded or erose; palea 1/2 lemma length or less, keels scabrid-ciliolate. Anthers 4.5–7.5 mm. Fl. and fr. Jul–Aug.

* Stony mountainsides, alpine steppe, river gravel; 2700–5000 m. Qinghai, Sichuan, Xizang, Yunnan.

The spikelets are variable in size, but always striking because of their colorful, conspicuously papery texture and very obtuse lemmas.


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