Northeastern Asian Flora
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Fimbristylis autumnalis (L.) Roem. & Schult.   (redirected from: Scirpus autumnalis L.)
Family: Cyperaceae
[Fimbristylis autumnalis f. brachyactis (Fernald) S.F.Blake, moreFimbristylis autumnalis var. gracilis (Kunth) K?., Fimbristylis autumnalis var. mucronulata (Michx.) Fernald, Fimbristylis firmula Steud., Fimbristylis frankii Steud., Fimbristylis frankii var. brachyactis Fernald, Fimbristylis geminata Kunth, Fimbristylis leptostachya Steud., Fimbristylis microstachya Steud., Fimbristylis mucronulata (Michx.) S.F.Blake, Fimbristylis tenuis Roem. & Schult., Fimbristylis wukungshanensis T.Tang & F.T.Wang, Iria autumnalis (L.) Kuntze, Iria autumnalis var. caespitosa Kuntze, Iria autumnalis var. geminata (Kunth) Farw., Iria gracilis Kuntze, Isolepis autumnalis (L.) J.Presl & C.Presl, Isolepis gracilis Kunth, Scirpus autumnalis L., Scirpus michauxii Pers., Scirpus mucronulatus Michx., Trichelostylis autumnalis (L.) Nees, Trichelostylis geminata (Kunth) Nees, Trichelostylis mucronulata (Michx.) Torr.]
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  • Japan Flora
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Japan Flora: Culms tufted, 10-30 cm. long, flac­cid, rather flat, glabrous; leaves shorter than the culm, flaccid, flat, 1.5-2.5 mm. wide, abruptly acute,  glabrous, the sheaths distichous, keeled, compressed, minutely ciliate along the dorsal margin of the mouth; inflorescence umbelliform, compound, with many spikelets, the bracts 2 or 3,linear, rather short; spikelets rather loosely arranged, lanceolate, angled, 7- to 16-flowered, 3-6 mm. long, 1.5 mm. wide, brownish red; scales membranous, narrowly ovate, 1.5-2 mm. long, acute, keeled; achenes 0.7 mm. long, whitish, with transversely ob­long reticulations; anthers 0.2 mm. long. July-Oct. Com­mon in wet places in lowlands.

Hokkaido, Honshu, Shikoku, Kyushu. Korea, Ryukyus, and N. America.

Fimbristylis autumnalis
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Development supported by College of Agriculture and Life Sciences of Seoul
National University and Korea National Arboretum of Korea Forest Service.
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