Northeastern Asian Flora
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Juncus filiformis L.  
Family: Juncaceae
[Juncus balticus f. pusillus (Franch.) Neuman, moreJuncus filiformis f. flaccidus Borza & Ny?., Juncus filiformis f. prostratus Freiberg, Juncus filiformis var. kulczynskii Racib., Juncus filiformis var. pluriflorus Krylov, Juncus filiformis var. pusillus Fr., Juncus filiformis var. transsilvanicus (Schur) Nyman, Juncus transsilvanicus Schur, Juncus trichodes Steud.]
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  • Japan Flora
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Japan Flora: Rhizomes short-creeping with abbreviated in­ternodes; culms slender, nearly terete, 30-90 cm. long inclusive of the cnlmlike lowest bract of the inflorescence, the basal sheaths few, scalelike; inflorescence a pseudolateral, few-flow­ered cyme, the lowest bract appearing like a continuation of the culm, 10-20 (-40) cm. long, sometimes longer than the culm; flowers about 3.5 mm. long including the capsule, peri­anth-segments narrowly lanceolate, the outer acute, longer than the somewhat obtuse inner segments; stamens 6, half as long as the inner perianth-segments, anthers half as long as the filaments; capsule oblong, obtuse, yellowish, nearly as long as the inner perianth-segments; seeds ellipsoidal, 0.7 mm. long.  Wet or swampy places in alpine or subalpine regions.

Hokkaido, Honshu (centr. distr.). Sakhalin and the Kuriles to Siberia, Europe, and N. America.

Juncus filiformis
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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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