View source for Juncus arcticus

{{Treatment/ID
|accepted_name=Juncus arcticus
|accepted_authority=Willdenow
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=2: 206. 1799
|year=1799
}}
|common_names=Arctic rush
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}
|basionyms=
|synonyms=
|hierarchy=Juncaceae;Juncus;Juncus subg. Genuini;Juncus arcticus
|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. Genuini]]</div><div class="higher-taxon"><small>species</small>[[Juncus arcticus]]</div></div>
|volume=Volume 22
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, 2–10 dm. <b>Rhizomes</b> long- creeping. <b>Culms</b> erect, 1–3 mm diam. <b>Cataphylls</b> several. <b>Leaves</b>: blade usually absent (present in <i></i>var.<i> mexicanus</i>). <b>Inflorescences</b> lateral, 3–many-flowered, loose to congested; primary bract barely exceeding to many times longer than inflorescence. <b>Flowers</b> variously pedicellate; bracteoles membranous; tepals chestnut brown or paler, lanceolate, (2.5–)3.3–5.5(–6) mm, margins clear; inner series loosely subtending capsule at maturity; usually slightly shorter, margins scarious to clear, apex acutish to obtuse; stamens 6, filaments 0.2–1.1 mm, anthers 0.9–2.2 mm; style 0.9–1.5 mm. <b>Capsules</b> 3-locular or infrequently pseudo-3-locular, oblate to narrowly ovoid, 3.5–4(–4.5) mm, equal to or exceeding perianth. <b>Seeds</b> dark amber, oblate to ellipsoid, 0.6–0.8 mm.</span><!--

-->{{Treatment/Body
|distribution=Alta.;B.C.;Man.;N.B.;N.S.;N.W.T.;Nunavut;Ont.;P.E.I.;Que.;Sask.;Yukon;Alaska;Ariz.;Ark.;Calif.;Colo.;Del.;Idaho;Ill.;Ind.;Iowa;Kans.;Maine;Mass.;Md.;Mich.;Minn.;Mo.;Mont.;N.Dak.;N.H.;N.Mex.;N.Y.;Nebr.;Nev.;Ohio;Okla.;Oreg.;Pa.;S.Dak.;Tex.;Utah;Va.;Vt.;W.Va.;Wash.;Wis.;Wyo.;Mexico;South America;Asia.
|discussion=<p>Numerous entities have been circumscribed and recognized at various nomenclatural ranks by a plethora of authors addressing state or regional floras. In considering the <i>Juncus arcticus</i>-balticus complex as a whole in North America, one is soon confronted with a wide-ranging and obviously polymorphic complex that has not read the literature. It is abundantly clear that the systematics of the group will not be solved on the basis of morphology alone and that resolution of the problem is ripe for molecular investigations.</p><!--
--><p>Varieties 3 7 (3 in the flora).</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Anthers about as long as filaments; blades absent
|[[Juncus arcticus var. alaskanus|Juncus arcticus var. alaskanus]]
|-id=key-0-1
|1
|Anthers at least 2 times as long as filaments.
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Blade-bearing leaves absent
|[[Juncus arcticus var. balticus|Juncus arcticus var. balticus]]
|-id=key-0-2
|2
|Distal 1 or 2 leaves with obvious blade
|[[Juncus arcticus var. mexicanus|Juncus arcticus var. mexicanus]]
|}
</div></div><!--

-->{{#Taxon:
name=Juncus arcticus
|authority=Willdenow
|rank=species
|parent rank=subgenus
|synonyms=
|basionyms=
|family=Juncaceae
|distribution=Alta.;B.C.;Man.;N.B.;N.S.;N.W.T.;Nunavut;Ont.;P.E.I.;Que.;Sask.;Yukon;Alaska;Ariz.;Ark.;Calif.;Colo.;Del.;Idaho;Ill.;Ind.;Iowa;Kans.;Maine;Mass.;Md.;Mich.;Minn.;Mo.;Mont.;N.Dak.;N.H.;N.Mex.;N.Y.;Nebr.;Nev.;Ohio;Okla.;Oreg.;Pa.;S.Dak.;Tex.;Utah;Va.;Vt.;W.Va.;Wash.;Wis.;Wyo.;Mexico;South America;Asia.
|reference=None
|publication title=Sp. Pl.
|publication year=1799
|special status=Illustrated
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V22/V22_597.xml
|genus=Juncus
|subgenus=Juncus subg. Genuini
|species=Juncus arcticus
}}<!--

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