View source for Juncus supiniformis

{{Treatment/ID
|accepted_name=Juncus supiniformis
|accepted_authority=Engelmann
|publications={{Treatment/Publication
|place=2:461. 1868
|year=1868
}}
|common_names=Hairy-leaved rush
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Juncus oreganus
|authority=S. Watson
|rank=species
}} {{Treatment/ID/Synonym
|name=Juncus paucicapitatus
|authority=Buchenau
|rank=species
}}
|hierarchy=Juncaceae;Juncus;Juncus subg. Septati;Juncus supiniformis
|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. Septati]]</div><div class="higher-taxon"><small>species</small>[[Juncus supiniformis]]</div></div>
|volume=Volume 22
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, cespitose or matted, often decumbent, rooting at proximal nodes or floating, 0.3–5 dm. <b>Culms</b> erect, decumbent and rooting at nodes, or floating, terete, 1–2 mm diam., smooth. <b>Cataphylls</b> 0 or 1–2, straw-colored, apex acute. <b>Leaves</b>: basal 1–3, cauline 1–4; auricles 0.8–2.1 mm, apex rounded to acute, membranaceous; blade terete, 3.7–15 cm × 0.4–1.3 mm, occasionally with filiform, flaccid, and floating leaves to 60 cm. <b>Inflorescences</b> terminal racemes of 2–9 heads, 2–10 cm, branches erect; primary bract erect; heads 2–12-flowered, obconic or rarely hemispheric, 4–13 mm diam. <b>Flowers</b>: tepals light brown or greenish to reddish brown, linear to narrowly lanceolate, apex acute to acuminate-subulate; outer tepals (2.1–)2.8–4.9 mm; inner tepals (2.1–)2.8–5.5 mm; stamens 3 or 6, anthers 1/2–3/4 filament length. <b>Capsules</b> usually exserted, dark brown, 1-locular, ovoid to oblong, (3.2–)3.5–6.1 mm, apex acute to acuminate proximal to beak, valves separating at dehiscence. <b>Seeds</b> narrowly obovoid to obovoid, 0.6–0.7 mm, not tailed; body clear yellow-brown.. n = ca. 30, ca. 50–60, 2n = ca. 112.</span><!--

-->{{Treatment/Body
|phenology=Fruiting mid summer–fall.
|habitat=Pond, lake and river shores, marshes, bogs, and ditches
|elevation=0–1000 m
|distribution=B.C.;Alaska;Calif.;Oreg.;Wash.
|discussion=<p>The northern California and southern Oregon populations (<i>Juncus supiniformis</i> in the strict sense) form long filiform leaves before flowering, are shorter, and have smaller flowers than the northern populations. Except for the filiform leaves, the variation in sizes appears to follow a rough latitudinal cline with the largest plants and largest flowers in Alaska.</p><!--
--><p>Flowers of <i>Juncus supiniformis</i> often form bulbils.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Juncus supiniformis
|authority=Engelmann
|rank=species
|parent rank=subgenus
|synonyms=Juncus oreganus;Juncus paucicapitatus
|basionyms=
|family=Juncaceae
|phenology=Fruiting mid summer–fall.
|habitat=Pond, lake and river shores, marshes, bogs, and ditches
|elevation=0–1000 m
|distribution=B.C.;Alaska;Calif.;Oreg.;Wash.
|reference=None
|publication title=
|publication year=1868
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V22/V22_489.xml
|genus=Juncus
|subgenus=Juncus subg. Septati
|species=Juncus supiniformis
}}<!--

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