View source for Sagittaria platyphylla

{{Treatment/ID
|accepted_name=Sagittaria platyphylla
|accepted_authority=(Engelmann) J. G. Smith
|publications={{Treatment/Publication
|title=N. Amer. Sagittaria.
|place=29. 1894
|year=1894
}}
|basionyms={{Treatment/ID/Basionym
|name=Sagittaria graminea var. platyphylla
|authority=Engelmann
|publication_title=in A. Gray, Manual ed.
|publication_place=5, 494. 1867
}}
|synonyms={{Treatment/ID/Synonym
|name=Sagittaria. mohrii
|authority=J. G. Smith
}}
|hierarchy=Alismataceae;Sagittaria;Sagittaria platyphylla
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Alismataceae]]</div><div class="higher-taxon"><small>genus</small>[[Sagittaria]]</div><div class="higher-taxon"><small>species</small>[[Sagittaria platyphylla]]</div></div>
|volume=Volume 22
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, to 150 cm; rhizomes absent; stolons present; corms present. <b>Leaves</b> submersed and emersed; submersed sessile, phyllodial, flattened, to 26 × 0.5 cm; emersed with petiole &#177; triangular, 21–70.5 cm, blade linear-ovate to ovate, 4.6–16.4 × 0.7–6.1 cm. <b>Inflorescences</b> racemes, of 3–9 whorls, emersed, 2.5–10 × 2–4.5 cm; peduncles 22–60 cm; bracts connate more than ¼ total length, lanceolate, 3–5.5 mm, delicate, not papillose; fruiting pedicels spreading to recurved, cylindric, 0.5–3 cm. <b>Flowers</b> to 1.8 cm diam.; sepals spreading to recurved, not enclosing flower or fruiting head; filaments dilated, longer than anthers, pubescent; pistillate pedicellate, without ring of sterile stamens. <b>Fruiting</b> heads 0.7–1.2 cm diam.; achenes oblanceoloid, not abaxially keeled, 1.2–2 × 0.8–1.2 mm, beaked; faces tuberculate, wings absent, glands absent; beak lateral, horizontal to erect, 0.3–0.6 mm. <b>2n</b> = 22.</span><!--

-->{{Treatment/Body
|phenology=Flowering summer–fall.
|habitat=Streams and lakes
|elevation=0–900 m
|distribution=Ala.;Ark.;Fla.;Ga.;Ill.;Ky.;La.;Miss.;Mo.;Ohio;Okla.;Pa.;Tenn.;Tex.;W.Va.;Mexico (Nuevo Le�n;sw Mexico);Central America (Panama).
|discussion=<p><i>Sagittaria platyphylla</i> has been accepted at the variety level, i.e., <i>Sagittaria graminea</i> var. platyphylla (C. Bogin 1955; J. W. Wooten 1973; E. O. Beal et al. 1982). After studying dozens of populations in the field from much of its range and hundreds of herbarium specimens, we have concluded that this taxon should be recognized at the specific level instead, a conclusion supported by cladistic analyses of morphologic characters (R. M. Kortright 1998)</p>
|tables=
|references={{Treatment/Reference
|id=kortright1998a
|text=Kortright, R. M. 1998. The Aquatic Plant Genus Sagittaria (Alismataceae): Phylogeny Based on Morphology. M.S. thesis. University of Alabama.
}}
}}<!--

--><!--

-->{{#Taxon:
name=Sagittaria platyphylla
|author=
|authority=(Engelmann) J. G. Smith
|rank=species
|parent rank=genus
|synonyms=Sagittaria. mohrii
|basionyms=Sagittaria graminea var. platyphylla
|family=Alismataceae
|phenology=Flowering summer–fall.
|habitat=Streams and lakes
|elevation=0–900 m
|distribution=Ala.;Ark.;Fla.;Ga.;Ill.;Ky.;La.;Miss.;Mo.;Ohio;Okla.;Pa.;Tenn.;Tex.;W.Va.;Mexico (Nuevo Le�n;sw Mexico);Central America (Panama).
|reference=kortright1998a
|publication title=N. Amer. Sagittaria.
|publication year=1894
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V22/V22_439.xml
|genus=Sagittaria
|species=Sagittaria platyphylla
}}<!--

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