View source for Sparganium angustifolium

{{Treatment/ID
|accepted_name=Sparganium angustifolium
|accepted_authority=Michaux
|publications={{Treatment/Publication
|title=Flora Boreali-Americana
|place=2: 189. 1803
|year=1803
}}
|common_names=Rubanier à feuilles étroites
|basionyms={{Treatment/ID/Basionym
|name=Sparganium multipedunculatum
|authority=unknown
|publication_title=S. simplex Hudson var. multipedunculatum Morong
|publication_place=
}}
|synonyms={{Treatment/ID/Synonym
|name=Sparganium angustifolium var. multipedunculatum
|authority=(Morong) Brayshaw
}} {{Treatment/ID/Synonym
|name=Sparganium emersum var. multipedunculatum
|authority=(Morong) Reveal
}}
|hierarchy=Sparganiaceae;Sparganium;Sparganium angustifolium
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Sparganiaceae]]</div><div class="higher-taxon"><small>genus</small>[[Sparganium]]</div><div class="higher-taxon"><small>species</small>[[Sparganium angustifolium]]</div></div>
|volume=Volume 22
|mention_page=
|treatment_page=page 276
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>slender, to more than 2 m long; leaves and inflorescences usually floating. <b>Leaves</b> limp, unkeeled, flat to plano-convex, 0.2–0.8(–2.5) m × 2–5(–10) mm. <b>Inflorescences</b>: rachis unbranched, flexuous, its fertile part usually erect at water surface; bracts ascending, lower bracts inflated near base; pistillate heads 2–5, at least some supra-axillary, not contiguous, sessile or most proximal peduncled (often prominently so in deeper water), 1–3 cm diam. in fruit; staminate heads (1–)2–4, contiguous and appearing as one elongate head, not contiguous with distalmost pistillate head. <b>Flowers</b>: tepals without subapical dark spot, erose-tipped, stigma 1, lance-ovate. <b>Fruits</b> reddish to brownish, dull, short-stipitate, ellipsoid to fusiform, not faceted, body constricted at equator, 3–7 mm, tapering to beak; beak straight, 1.5–2 mm; tepals attached at base, reaching about to equator. <b>Seeds</b> 1. <b>2n</b> = 30.</span><!--

-->{{Treatment/Body
|phenology=Flowering summer–fall (Jun–Oct southwestward, Jul–Aug northward).
|habitat=Acid, oligotrophic waters of lakes, ponds, ditches, and streams, usually in shallow waters but to 2.5 m deep
|elevation=0–4000 m
|distribution=Greenland;St. Pierre and Miquelon;Alta.;B.C.;Man.;N.B.;Nfld. and Labr.;N.W.T.;N.S.;Ont.;P.E.I.;Que.;Sask.;Yukon;Alaska;Ariz.;Calif.;Colo.;Conn.;Idaho;Maine;Mass.;Mich.;Minn.;Mont.;Nev.;N.H.;N.Mex.;N.Y.;Oreg.;Utah;Vt.;Wash.;Wis.;Wyo.;circumboreal.
|discussion=<p><i>Sparganium angustifolium</i> is sometimes abundant, its leaves then covering the surface. It is a relatively invariable species that forms fertile hybrids with <i>S. emersum</i> (C. D. K. Cook and M. S. Nicholls 1986), from which it is distinguished by its contiguous staminate heads and flat to plano-convex leaves. See the discussion under <i>S. emersum</i>.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Sparganium angustifolium
|author=
|authority=Michaux
|rank=species
|parent rank=genus
|synonyms=Sparganium angustifolium var. multipedunculatum;Sparganium emersum var. multipedunculatum
|basionyms=Sparganium multipedunculatum
|family=Sparganiaceae
|phenology=Flowering summer–fall (Jun–Oct southwestward, Jul–Aug northward).
|habitat=Acid, oligotrophic waters of lakes, ponds, ditches, and streams, usually in shallow waters but to 2.5 m deep
|elevation=0–4000 m
|distribution=Greenland;St. Pierre and Miquelon;Alta.;B.C.;Man.;N.B.;Nfld. and Labr.;N.W.T.;N.S.;Ont.;P.E.I.;Que.;Sask.;Yukon;Alaska;Ariz.;Calif.;Colo.;Conn.;Idaho;Maine;Mass.;Mich.;Minn.;Mont.;Nev.;N.H.;N.Mex.;N.Y.;Oreg.;Utah;Vt.;Wash.;Wis.;Wyo.;circumboreal.
|reference=None
|publication title=Flora Boreali-Americana
|publication year=1803
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V22/V22_113.xml
|genus=Sparganium
|species=Sparganium angustifolium
}}<!--

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