View source for Glyceria fluitans

{{Treatment/ID
|accepted_name=Glyceria fluitans
|accepted_authority=(L.) R. Br.
|publications=
|common_names=Water mannagrass;Glycerie flottante
|basionyms=
|synonyms=
|hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Meliceae;Glyceria;Glyceria sect. Glyceria;Glyceria fluitans
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Poaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Poaceae subfam. Pooideae]]</div><div class="higher-taxon"><small>tribe</small>[[Poaceae tribe Meliceae]]</div><div class="higher-taxon"><small>genus</small>[[Glyceria]]</div><div class="higher-taxon"><small>section</small>[[Glyceria sect. Glyceria]]</div><div class="higher-taxon"><small>species</small>[[Glyceria fluitans]]</div></div>
|volume=Volume 24
|mention_page=
|treatment_page=page 85
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>perennial. <b>Culms</b> 20-150 cm tall, 2-4 mm thick, erect or spreading, sometimes decumbent and rooting from the lower nodes, distal portion sometimes floating in shallow water. <b>Sheaths</b> glabrous, keeled; ligules 5-15 mm; blades 5-25 cm long, 3-10 mm wide, both surfaces smooth. <b>Panicles</b> 10-50 cm long, 2-3 cm wide; branches 3-5 cm, paired or solitary, usually appressed to ascending, divergent at anthesis, with 1-4 spikelets; pedicels 0.8-20 mm. <b>Spikelets</b> (15)18-39 mm long, 1.7-3.3 mm wide, cylindrical and terete, except slightly laterally compressed at anthesis, rectangular in side view, with 8-16 florets. <b>Lower</b> glumes 1.3-3.9 mm; upper glumes 2.7-5 mm; rachilla internodes 1.9-2.5 mm; lemmas 5.2-8 mm, midveins extending to within 0.1 mm of the apical margins, scabrous over and between the veins, prickles about 0.05 mm, apices acute, usually entire; paleas from shorter than to 0.6(1.5) mm longer than the lemmas, keels winged, apices bifid, teeth 0.1-0.4 mm, parallel to convergent, sometimes crossing when dry; anthers 1.5-3 mm, usually purple. <b>Caryopses</b> 2-3 mm. <b>2n</b> = 40.</span><!--

-->{{Treatment/Body
|distribution=Md.;Mass.;Pa.;Calif.;Tenn.;N.Y.;Ark.;Pacific Islands (Hawaii);N.J.;Nfld. And Labr. (Labr.);N.S.;Idaho;S.Dak.
|discussion=<p><i>Glyceria fluitans</i> is a Eurasian species. In the Americas, it has been collected from British Columbia to California on the west coast, in South Dakota, and from Newfoundland to Pennsylvania on the eastern seaboard. In Europe, it grows in rich, organic, wet soils, often near <i>G. notata</i>, with which it hybridizes. It is less tolerant of trampling than <i>G. notata</i>. Many earlier reports from eastern Canada are based on <i>G. borealis</i> or <i>G. septentrionalis</i> (Dore and McNeill 1980; Scoggan 1978). In western North America, it has been confused with <i>G. xoccidentalis</i>. It tends to differ from all three in its longer lemmas and anthers. Nevertheless, identification of some specimens will prove troublesome. For further discussion, see under the species mentioned.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Glyceria fluitans
|author=
|authority=(L.) R. Br.
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Poaceae
|distribution=Md.;Mass.;Pa.;Calif.;Tenn.;N.Y.;Ark.;Pacific Islands (Hawaii);N.J.;Nfld. And Labr. (Labr.);N.S.;Idaho;S.Dak.
|reference=None
|publication title=
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V24/V24_101.xml
|subfamily=Poaceae subfam. Pooideae
|tribe=Poaceae tribe Meliceae
|genus=Glyceria
|section=Glyceria sect. Glyceria
|species=Glyceria fluitans
}}<!--

-->[[Category:Treatment]][[Category:Glyceria sect. Glyceria]]