View source for Pistia stratiotes

{{Treatment/ID
|accepted_name=Pistia stratiotes
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=2: 963. 1753
|year=1753
}}
|common_names=Water-lettuce
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Pistia spathulata
|authority=Michaux
|rank=species
}}
|hierarchy=Araceae;Pistia;Pistia stratiotes
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Araceae]]</div><div class="higher-taxon"><small>genus</small>[[Pistia]]</div><div class="higher-taxon"><small>species</small>[[Pistia stratiotes]]</div></div>
|volume=Volume 22
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Roots </b>to 50 cm, with short branches. <b>Leaves</b> light green to grayish green, 2–15(–20) cm, spongy, pubescence dense, white; major veins 5–13(–15), nearly parallel, abaxially prominent. <b>Inflorescences</b>: spathe white to pale green, convolute basally, slightly constricted above middle, spreading apically, pwhite to pale green, pubescent outside, glabrous inside; spadix adnate to spathe more than 1/2 its length, shorter than spathe; axis naked at base of staminate part and sometimes extending beyond staminate flowers. <b>Flowers</b>: staminate flowers (2–)6–8, in single whorl around central stalk, stamens 2, connate; pistillate flower solitary; ovariesy 1-locular, 4–5 mm; ovules 4–15(–20), orthotropous; styles ca. 3 mm; stigmas obtuse, with small hairs. ; staminate flowers (2–)6–8, in single whorl around central stalk; stamens 2, connate. <b>Fruits</b> with thin pericarp. <b>Seeds</b> light brown, cylindric, 2 × 1 mm. <b>2n</b> = 28 (India, Borneo).</span><!--

-->{{Treatment/Body
|phenology=Flowering mainly late summer–early winter (although; plants have been collected in flower in almost all months).
|habitat=Slow-moving streams, canals, drainage ditches, ponds, lakes, and springs
|elevation=0–10 m
|distribution=Fla.;La.;Tex.;Mexico;West Indies;Central America;South America;Asia;Africa;Pacific Islands;Australia.
|discussion=<p><i>Pistia stratiotes</i> has been collected north and west of its U.S. range in Arizona, California, Georgia, Missouri, New Jersey, Ohio, and South Carolina. These are probably populations that do not persist. Although <i>P. stratiotes</i> is often reported as occurring from Florida to Texas, I saw no verifying herbarium specimens from Alabama or Mississippi, nor were any populations located during my fieldwork in those states.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Pistia stratiotes
|authority=Linnaeus
|rank=species
|parent rank=genus
|synonyms=Pistia spathulata
|basionyms=
|family=Araceae
|phenology=Flowering mainly late summer–early winter (although; plants have been collected in flower in almost all months).
|habitat=Slow-moving streams, canals, drainage ditches, ponds, lakes, and springs
|elevation=0–10 m
|distribution=Fla.;La.;Tex.;Mexico;West Indies;Central America;South America;Asia;Africa;Pacific Islands;Australia.
|reference=None
|publication title=Sp. Pl.
|publication year=1753
|special status=Illustrated
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V22/V22_173.xml
|genus=Pistia
|species=Pistia stratiotes
}}<!--

-->[[Category:Treatment]][[Category:Pistia]]