View source for Glyceria septentrionalis

{{Treatment/ID
|accepted_name=Glyceria septentrionalis
|accepted_authority=Hitchc.
|publications=
|common_names=Northern glyceria;Northern mannagrass;Glycerie septentrionale
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Panicularia septentrionalis
|authority=
|rank=species
}}
|hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Meliceae;Glyceria;Glyceria sect. Glyceria;Glyceria septentrionalis
|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 septentrionalis]]</div></div>
|volume=Volume 24
|mention_page=
|treatment_page=page 81
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>perennial. <b>Culms</b> 73-182 cm tall, to 8 mm thick, often decumbent and rooting from the lower nodes. <b>Sheaths</b> smooth or scabridulous, keeled; ligules 5-16 mm; blades 18-32 cm long, 2-15 mm wide, abaxial surfaces scabrous, adaxial surfaces scabridulous, usually glabrous, midcauline leaves sometimes papillose. <b>Panicles</b> 15-60 cm long, 1-3.5 cm wide; branches 3-17 cm, usually erect to strongly ascending, sometimes spreading at anthesis, usually straight, sometimes lax, with 1-9 spikelets; pedicels 0.7-1.7 mm. <b>Spikelets</b> (6.5)10-23 mm long, 1-3 mm wide, cylindrical and terete, except at anthesis when slightly laterally compressed, rectangular in side view, with 8-16 florets. <b>Glumes</b> elliptic to obovate, apices rounded to acute; lower glumes (0.3)1.5-3.7 mm; upper glumes (1.9)2.3-5.2 mm; rachilla internodes 1.1-1.8 mm; lemmas 2.4-4.8 mm, veins scabrous or hispidulous, intercostal regions scabridulous, scabrous, or hispidulous, midveins extending to within 0.1 mm of the apical margins, apices truncate to obtuse or acute, apical margins crenate to entire; paleas from slightly shorter than to exceeding the lemmas, apices bifid, teeth to 0.2 mm; anthers 3, 0.5-1.8 mm. <b>Caryopses</b> 1.5-2 mm; hila about as long as the caryopses.</span><!--

-->{{Treatment/Body
|distribution=Conn.;N.J.;N.Y.;Va.;W.Va.;Del.;D.C.;Wis.;Ont.;Que.;Fla.;N.H.;Tex.;La.;Tenn.;N.C.;S.C.;Pa.;Mass.;Maine;R.I.;Ala.;Ark.;Ill.;Ga.;Ind.;Iowa;Okla.;Md.;Ohio;Mo.;Minn.;Mich.;Miss.;Ky.
|discussion=<p><i>Glyceria septentrionalis</i> is native and restricted to North America. It grows in shallow water or very wet soils, from southern Quebec to the east coast and south to eastern Texas and South Carolina. Voss (1972) stated that it is the floating leaves of <i>G. septentrionalis</i> that develop papillose, non-wettable adaxial surfaces. They seem to be developed less often than in <i>G. borealis</i>; whether this reflects a difference in habitat or growth habit is not known.</p><!--
--><p><i>Glyceria septentrionalis</i> resembles <i>G. notata</i> in its rather short, truncate to rounded lemmas, but it tends to have fewer spikelets on its branches. In addition, the veins of its leaf sheaths appear completely smooth, even under high magnification. That said, many specimens will be hard to identify if their provenance is not known.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Lemmas hispidulous over the veins, hairs about 0.1 mm long
|[[Glyceria septentrionalis var. arkansana|Glyceria septentrionalis var. arkansana]]
|-id=key-0-1
|1
|Lemmas scabrous over the veins, prickles about 0.05 mm long
|[[Glyceria septentrionalis var. septentrionalis|Glyceria septentrionalis var. septentrionalis]]
|}
</div></div><!--

-->{{#Taxon:
name=Glyceria septentrionalis
|authority=Hitchc.
|rank=species
|parent rank=section
|synonyms=Panicularia septentrionalis
|basionyms=
|family=Poaceae
|illustrator=Cindy Roché
|illustration copyright=Utah State University
|distribution=Conn.;N.J.;N.Y.;Va.;W.Va.;Del.;D.C.;Wis.;Ont.;Que.;Fla.;N.H.;Tex.;La.;Tenn.;N.C.;S.C.;Pa.;Mass.;Maine;R.I.;Ala.;Ark.;Ill.;Ga.;Ind.;Iowa;Okla.;Md.;Ohio;Mo.;Minn.;Mich.;Miss.;Ky.
|reference=None
|publication title=
|publication year=
|special status=Endemic
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V24/V24_95.xml
|subfamily=Poaceae subfam. Pooideae
|tribe=Poaceae tribe Meliceae
|genus=Glyceria
|section=Glyceria sect. Glyceria
|species=Glyceria septentrionalis
}}<!--

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