View source for Juncus tenuis

{{Treatment/ID
|accepted_name=Juncus tenuis
|accepted_authority=Willdenow
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=2(1): 214. 1799
|year=1799
}}
|common_names=Path rush
|special_status={{Treatment/ID/Special_status
|code=W
|label=Weedy
}}{{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Juncus bicornis
|authority=Michaux
|rank=species
}} {{Treatment/ID/Synonym
|name=Juncus bicornis var. williamsii
|authority=(Fernald) Victorin
|rank=variety
}} {{Treatment/ID/Synonym
|name=Juncus macer
|authority=forma williamsii (Fernald) F. J. Hermann
|rank=species
}} {{Treatment/ID/Synonym
|name=Juncus macer
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=Juncus macer var. williamsii
|authority=(Fernald) Fernald
|rank=variety
}} {{Treatment/ID/Synonym
|name=Juncus tenuis var. bicornis
|authority=(Michaux) E. Meyer
|rank=variety
}} {{Treatment/ID/Synonym
|name=Juncus tenuis var. multicornis
|authority=E. Meyer
|rank=variety
}} {{Treatment/ID/Synonym
|name=Juncus tenuis var. williamsii
|authority=Fernald
|rank=variety
}}
|hierarchy=Juncaceae;Juncus;Juncus subg. Poiophylli;Juncus tenuis
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Juncaceae]]</div><div class="higher-taxon"><small>genus</small>[[Juncus]]</div><div class="higher-taxon"><small>subgenus</small>[[Juncus subg. Poiophylli]]</div><div class="higher-taxon"><small>species</small>[[Juncus tenuis]]</div></div>
|volume=Volume 22
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, tufted, 1.5–5 dm. <b>Rhizomes</b> densely branching. <b>Culms</b> few–20. <b>Leaves</b> basal, (1–)2–3; auricles 2–5 mm, apex acute, membranous; blade flat, 3–12 cm × 0.5–1 mm, margins entire. <b>Inflorescences</b> 5–40-flowered, borne congested or branch internodes ca. as long as tepals, ssomewhat loose, 1–5 cm; primary bract usually longer than inflorescence. <b>Flowers</b>: bracteoles 2; tepals greenish, lanceolate, 3.3–4.4 mm; outer and inner series nearly equal; stamens 6, filaments 0.5–0.9 mm, anthers 0.1–0.2 mm; style 0.1–0.2 mm. <b>Capsules</b> tan or light brown, 1-locular to pseudo-3-locular, ellipsoid, (3.3–)3.8–4.7 × (1.1–)1.3–1.7 mm, nearly equal to tepals. <b>Seeds</b> tan, ellipsoid to lunate, (0.52–)5.5–0.65(–0.7) mm, not tailed. <b>2n</b> = 80.</span><!--

-->{{Treatment/Body
|phenology=Flowering spring–early summer.
|habitat=Exposed or shaded sites in soils ranging from sandy to clayey under moist or drier conditions, oftentimes these sites naturally or otherwise disturbed (e.g., game or human trails)
|distribution=Alta.;B.C.;Man.;N.B.;N.S.;Ont.;P.E.I.;Que.;Sask.;Ala.;Alaska;Ariz.;Ark.;Calif.;Colo.;Conn.;Del.;D.C.;Fla.;Ga.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Mont.;Nebr.;Nev.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Oreg.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo.;introduced worldwide.
|discussion=<p><i>Juncus tenuis</i> occurs throughout North America. It is particularly abundant in northeastern United States and eastern Canada, although infrequent in the south and west.</p><!--
--><p>Through the use of isozyme electrophoresis, hybridization can be demonstrated between various members of the <i>Juncus tenuis</i> complex, including <i>Juncus tenuis</i>, <i>J. anthelatus</i>, <i>J. interior</i>, <i>J. secundus</i>, and <i>J. dichotomus</i> (R. E. Brooks, unpubl.). <i>Juncus</i> ××oronensis is thought to be a hybrid between <i>J. tenuis</i> and <i>J. vaseyi</i> in the northeast.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Juncus tenuis
|authority=Willdenow
|rank=species
|parent rank=subgenus
|synonyms=Juncus bicornis;Juncus bicornis var. williamsii;Juncus macer;Juncus macer;Juncus macer var. williamsii;Juncus tenuis var. bicornis;Juncus tenuis var. multicornis;Juncus tenuis var. williamsii
|basionyms=
|family=Juncaceae
|phenology=Flowering spring–early summer.
|habitat=Exposed or shaded sites in soils ranging from sandy to clayey under moist or drier conditions, oftentimes these sites naturally or otherwise disturbed (e.g., game or human trails)
|distribution=Alta.;B.C.;Man.;N.B.;N.S.;Ont.;P.E.I.;Que.;Sask.;Ala.;Alaska;Ariz.;Ark.;Calif.;Colo.;Conn.;Del.;D.C.;Fla.;Ga.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Mont.;Nebr.;Nev.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Oreg.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo.;introduced worldwide.
|reference=None
|publication title=Sp. Pl.
|publication year=1799
|special status=Weedy;Illustrated
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V22/V22_481.xml
|genus=Juncus
|subgenus=Juncus subg. Poiophylli
|species=Juncus tenuis
}}<!--

-->[[Category:Treatment]][[Category:Juncus subg. Poiophylli]]