Ohwi, Acta phytotaxonomica et geobotanica eng 5: 184. 1936. (Acta Phytotax. Geobot., 植物分類,地理)
- Culms tufted, without conspicous rhizome, 20-40-cm tall, angular, smooth, scabird below.
- Leaf blade linear, equal to slightly shorter than culm, flattish with weakly incurved margins, herbaceous, glabrous to sparingly pilose, smooth except on scabrid upper margins; sheaths 2-5 cm long, membranaceous ventral side dark stramineous, obliquely truncate at orifice; ligule a fringe of short hairs.
- Inflorescence simple to compound, 3-4 cm by 2.5-3 cm, loose; involucre bracts 3- 4, lowest leafy, subequal to corymb; primary branches 1-3, flattened, 2-4 cm long. Spikelets many per inflorescence, ovate to oblong-ovate, 5-10 mm by 2.2-2.5 mm, acute, terete, densely many-flowered, light rusty brown, weakly shiny.
- Glumes many per spikelet, broadly ovate, ca. 2 mm long, obtuse, membranaceous pale and tinged with rusty brown, 3-nerved with a lateral pair not reaching apex. Anthers ca. 0.3 mm long. Style flat, ciliate on upper margins, slightly dilated at base; stigmas 2. Achenes broadly obovate, ca. 1 mm long, biconvex, shortly stipitate, brownish, sparsely verruculose, finely cancellated with several rows of transversely oblong cells.
specimen not seen.
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細川隆英 Takahide Hosokawa
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