View source for Pontederiaceae

{{Treatment/ID
|accepted_name=Pontederiaceae
|accepted_authority=Kunth
|publications=
|common_names=Pickerel-weed Family
|basionyms=
|synonyms=
|hierarchy=Pontederiaceae
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Pontederiaceae]]</div></div>
|volume=Volume 26
|mention_page=page 22, 23
|treatment_page=page 37
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism duration;whole_organism duration;whole_organism growth form or habitat;whole_organism architecture;whole_organism growth form"><b>Herbs,</b> annual or perennial, aquatic, rooted in mud or free-floating.</span> <span class="statement" id="st-d0_s1" data-properties="stem reproduction;stem life cycle;type quantity"><b>Stems </b>of 2 types, vegetative and flowering;</span> <span class="statement" id="st-d0_s2" data-properties="stem reproduction;stem development;stem pubescence;leaf quantity">vegetative stems indeterminate, bearing many leaves, glabrous;</span> <span class="statement" id="st-d0_s3" data-properties="flowering-stem development;flowering-stem location;leaf quantity;spathe quantity;terminal inflorescence quantity">flowering-stems determinate, usually emersed, bearing single leaf, spathe, and terminal inflorescence.</span> <span class="statement" id="st-d0_s4" data-properties="leaf architecture;leaf architecture;type quantity"><b>Leaves </b>of 2 types, sessile and petiolate;</span> <span class="statement" id="st-d0_s5" data-properties="stipule condition;apex architecture or shape;leaf architecture">stipule marcescent, apex truncate, associated with petiolate leaves only;</span> <span class="statement" id="st-d0_s6" data-properties="leaf architecture;leaf location;leaf location;leaf arrangement;stem shape;blade shape;base architecture or shape;margin architecture or shape">sessile leaves submersed or rarely emersed, forming basal rosette or alternate on elongate stem, blade linear to occasionally oblanceolate, base sheathing, margins entire;</span> <span class="statement" id="st-d0_s7" data-properties="leaf architecture;leaf location;leaf location;blade shape;blade shape;blade shape;blade shape;blade shape">petiolate leaves floating or emersed, blade cordate, reniform, or ovate.</span> <span class="statement" id="st-d0_s8" data-properties="inflorescence arrangement;inflorescence architecture;inflorescence architecture;inflorescence architecture;inflorescence architecture;inflorescence architecture"><b>Inflorescences </b>paniculate, spicate, umbellate, or 1-flowered;</span> <span class="statement" id="st-d0_s9" data-properties="spathe shape;spathe architecture;spathe architecture;extension shape">spathes bractlike, folded or clasping, commonly with acute to caudate extension.</span> <span class="statement" id="st-d0_s10" data-properties="flower architecture;flower architecture"><b>Flowers </b>sessile, 3-merous;</span> <span class="statement" id="st-d0_s11" data-properties="perianth coloration;perianth coloration;perianth coloration;perianth coloration;perianth coloration;perianth coloration;tepal fusion;tube shape;tube shape;limb shape">perianth with tepals connate proximally, yellow, blue, mauve, or white, tube tubular or funnelform, limb 6-lobed;</span> <span class="statement" id="st-d0_s12" data-properties="stamen quantity;stamen quantity;stamen fusion">stamens 3 or 6, adnate to perianth;</span> <span class="statement" id="st-d0_s13" data-properties="">pistils 3-locular, 1 or 3 developing to maturity;</span> <span class="statement" id="st-d0_s14" data-properties="pistil architecture or structure in adjective form;pistil quantity;pistil quantity;pistil life cycle;pistil placentation;pistil position">placentation parietal or basal;</span> <span class="statement" id="st-d0_s15" data-properties="ovule quantity">ovules 1–many.</span> <span class="statement" id="st-d0_s16" data-properties="fruit architecture;fruit shape"><b>Fruits </b>capsular or utriculate.</span> <span class="statement" id="st-d0_s17" data-properties="seed architecture or pubescence or relief;seed architecture or pubescence or relief;wing dehiscence or orientation"><b>Seeds </b>smooth or with longitudinal wings.</span><!--

-->{{Treatment/Body
|distribution=Nearly worldwide;primarily of tropical and subtropical regions
|discussion=<p>Genera 6, species ca. 30 (4 genera, 11 species in the flora; 2 genera, 3 species introduced).</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Inflorescences commonly with more than 50 flowers; fruits utriculate, 1-seeded
|[[Pontederia|Pontederia]]
|-id=key-0-1
|1
|Inflorescences with fewer than 30 flowers; fruits capsular, 10–200-seeded.
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Tepals connate only basally
|[[Monochoria|Monochoria]]
|-id=key-0-2
|2
|Tepals connate 1/2 or more of their length.
|[[#key-0-3| > 3]]
|-id=key-0-3
|3
|Petiolate leaf blade coriaceous; perianth limb lobes ovate, longer than 2 cm; stamens 6
|[[Eichhornia|Eichhornia]]
|-id=key-0-3
|3
|Petiolate leaf blade membranous or absent; perianth limb lobes linear to oblanceolate, shorter than 2 cm; stamens 3
|[[Heteranthera|Heteranthera]]
|}
</div></div><!--

-->{{#Taxon:
name=Pontederiaceae
|author=Charles N. Horn
|authority=Kunth
|rank=family
|parent rank=
|synonyms=
|basionyms=
|family=Pontederiaceae
|illustrator=John Myers
|illustration copyright=Flora of North America Association
|distribution=Nearly worldwide;primarily of tropical and subtropical regions
|reference=None
|publication title=
|publication year=
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V26/V26_1.xml
|apex architecture or shape=truncate
|base architecture or shape=sheathing
|blade shape=ovate;reniform;ovate;reniform;cordate;linear;occasionally oblanceolate
|extension shape=acute;caudate
|flower architecture=3-merous;sessile
|flowering-stem development=determinate
|flowering-stem location=emersed
|fruit architecture=capsular
|fruit shape=utriculate
|inflorescence architecture=1-flowered;umbellate;1-flowered;umbellate;spicate
|inflorescence arrangement=paniculate
|leaf architecture=petiolate;sessile;petiolate;petiolate;sessile
|leaf arrangement=alternate
|leaf location=emersed;floating;emersed;submersed
|leaf quantity=single;many
|limb shape=6-lobed
|margin architecture or shape=entire
|ovule quantity=1;many
|perianth coloration=white;mauve;white;mauve;blue;yellow
|pistil architecture or structure in adjective form=3-locular
|pistil life cycle=maturity
|pistil placentation=parietal
|pistil position=basal
|pistil quantity=3;1
|seed architecture or pubescence or relief=with longitudinal wings;smooth
|spathe architecture=clasping;folded
|spathe quantity=single
|spathe shape=bractlike
|stamen fusion=adnate
|stamen quantity=6;3
|stem development=indeterminate
|stem life cycle=flowering
|stem pubescence=glabrous
|stem reproduction=vegetative;vegetative
|stem shape=elongate
|stipule condition=marcescent
|tepal fusion=connate
|terminal inflorescence quantity=single
|tube shape=funnel;tubular
|type quantity=2;2
|whole_organism architecture=rooted
|whole_organism duration=perennial;annual
|whole_organism growth form=herb
|whole_organism growth form or habitat=aquatic
|wing dehiscence or orientation=longitudinal
}}<!--

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