View source for Nuphar polysepala

{{Treatment/ID
|accepted_name=Nuphar polysepala
|accepted_authority=Engelmann
|publications={{Treatment/Publication
|title=Trans. Acad. Sci. St. Louis
|place=2: 282. 1865 (as polysepalum)
}}
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}{{Treatment/ID/Special_status
|code=F
|label=Selected by author to be illustrated
}}{{Treatment/ID/Special_status
|code=W
|label=Weedy
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Nuphar lutea subsp. polysepala
|authority=(Endelmann) E. O. Beal
}} {{Treatment/ID/Synonym
|name=Nymphaea polysepala
|authority=(Engelmann) Greene
}}
|hierarchy=Nymphaeaceae;Nuphar;Nuphar polysepala
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Nymphaeaceae]]</div><div class="higher-taxon"><small>genus</small>[[Nuphar]]</div><div class="higher-taxon"><small>species</small>[[Nuphar polysepala]]</div></div>
|volume=Volume 3
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Rhizomes </b>3-8 cm diam. <b>Leaves</b> mostly floating, occasionally emersed or submersed; petiole terete. <b>Leaf</b> blade abaxially and adaxially green, widely ovate, 10-40(-45) × 7-30 cm, ca. 1.2-1.5 times as long as wide, sinus 1/3-2/3 length of midrib, lobes divergent to overlapping; surfaces glabrous. <b>Flowers</b> 5-10 cm diam.; sepals mostly (6-)9(-12), abaxially green to adaxially yellow, sometimes red-tinged toward base; petals oblong, thick; anthers 3.5-9 mm, slightly shorter than filaments. <b>Fruit</b> green to yellow, cylindric to ovoid, 4-6(-9) × 3.5-6 cm, strongly ribbed, slightly constricted below stigmatic disk; stigmatic disk green, 20-35 mm diam., entire to crenate; stigmatic rays 8-26(-36), linear to lanceolate, terminating within 1(-1.5) mm from margin of disk. <b>Seeds</b> 3.5-5 mm. <b>2n</b> = 34.</span><!--

-->{{Treatment/Body
|phenology=Flowering spring (later in north)-summer.
|habitat=Ponds, lakes, and sluggish streams
|elevation=0-3700 m
|distribution=B.C.;N.W.T.;Yukon;Alaska;Ariz.;Calif.;Colo.;Idaho;Mont.;Nev.;N.Mex.;Oreg.;Utah;Wash.;Wyo.
|discussion=<p>Plants intermediate between <i>Nuphar polysepala</i> and <i>N. variegata</i> occur in eastern British Columbia.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Nuphar polysepala
|author=
|authority=Engelmann
|rank=species
|parent rank=genus
|synonyms=Nuphar lutea subsp. polysepala;Nymphaea polysepala
|basionyms=
|family=Nymphaeaceae
|phenology=Flowering spring (later in north)-summer.
|habitat=Ponds, lakes, and sluggish streams
|elevation=0-3700 m
|distribution=B.C.;N.W.T.;Yukon;Alaska;Ariz.;Calif.;Colo.;Idaho;Mont.;Nev.;N.Mex.;Oreg.;Utah;Wash.;Wyo.
|reference=None
|publication title=Trans. Acad. Sci. St. Louis
|publication year=
|special status=Endemic;Selected by author to be illustrated;Weedy
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V3/V3_672.xml
|genus=Nuphar
|species=Nuphar polysepala
}}<!--

-->[[Category:Treatment]][[Category:Nuphar]]