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/Synonym
|name=Sparganium multipedunculatum
|authority=unknown
}}
|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>Sparganium angustifolium is sometimes abundant, its leaves then covering the surface. It is a relatively invariable species that forms fertile hybrids with S. emersum (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 S. emersum.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#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/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V22/V22_113.xml
|genus=Sparganium
|species=Sparganium angustifolium
}}<!--

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