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112. Lophatherum Brongniart in Duperrey, Voy. Monde. 2: 49. 1831.
淡竹叶属 dan zhu ye shu
Perennials with spindle-shaped root tubers. Culms unbranched. Leaf blades all cauline, narrowly lanceolate, strongly many-veined with obvious cross veinlets, pseudopetiolate. Inflorescence of loose or dense unilateral racemes spaced on a central axis. Spikelets falling entire, floret 1, rachilla extension bearing a bunch of up to 9 smaller sterile lemmas, cross veinlets evident on glumes and lemmas; glumes unequal, 5–7-veined, apex obtuse; fertile lemma 7-veined, all lemmas with a retrorsely scaberulous awn, those of the sterile lemmas developing into a fan of recurved hooks at maturity. Stamens 2 or 3.
Two species: warm-temperate and tropical Asia: two species in China.
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Spikelets narrowly lanceolate, subterete, 1.5–2.5 mm broad, patent at maturity; lowest lemma with straight back |
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1 L. gracile |
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Spikelets ovate, lightly flattened, 3–4 mm broad, imbricate at maturity; lowest lemma with gibbous back. |
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2 L. sinense |
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Lower Taxa
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