Northeastern Asian Flora
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Juncus tenuis Willd.   (redirected from: Juncus macer Gray)
Family: Juncaceae
[Juncus baekdusanensis M.Kim, moreJuncus bicornis Michx., Juncus bicornis var. williamsii (Fernald) Vict., Juncus chloroticus Schult. & Schult.f., Juncus germanorum Steud., Juncus leptocladus Hayata, Juncus lucidus Hochst., Juncus macer Gray, Juncus macer f. williamsii (Fernald) F.J.Herm., Juncus macer var. williamsii (Fernald) Fernald, Juncus tenuis f. victorinii Raymond, Juncus tenuis f. williamsii (Fernald) F.J.Herm., Juncus tenuis subsp. bicornis (Michx.) P.Fourn., Juncus tenuis var. bicornis (Michx.) E.Mey., Juncus tenuis var. germanorum (Steud.) Rouy, Juncus tenuis var. laxiflorus Fiek, Juncus tenuis var. multicornis E.Mey., Juncus tenuis var. nakaii Satake, Juncus tenuis var. williamsii Fernald, Juncus tristanianus Hemsl., Juncus vacillans Steud.]
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  • Japan Flora
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Japan Flora: Green; rhizomes very short; stems tufted, 30-60 cm. long, terete, slender; leaves flattened, grasslike, shorter than the stem, slightly involute, the auricle elliptic, 2-3 mm. long, grayish white, scarious; inflores­cence terminal, cymose, the bracts leafy, longer than the in­florescence; flowers solitary; perianth-segments nearly equal in length, lanceolate, acute, light green, 3.5-4 mm. long; stamens 6, half as long as the perianth, the anthers half as long as the filaments; capsule light green, ovoid-ellipsoidal, as long as to slightly shorter than the perianth; seeds obliquely obovoid. July-Sept Waste places along roadsides in mountains.

Hokkaido, Honshu, Shikoku, Kyushu; quite common and rather variable. Europe, centr. Asia, N. and S. America and Australia.

Juncus tenuis
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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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