View source for Najas gracillima

{{Treatment/ID
|accepted_name=Najas gracillima
|accepted_authority=(A. Braun ex Engelmann) Magnus
|publications={{Treatment/Publication
|title=Beitrage zur Kenntniss der Gattung Najas
|place=23. 1870
|year=1870
}}
|basionyms={{Treatment/ID/Basionym
|name=Najas indica var. gracillima
|authority=A. Braun ex Engelmann
|rank=variety
|publication_title=in A. Gray, Manual ed.
|publication_place=5, 681. 1867
}}
|synonyms=
|hierarchy=Najadaceae;Najas;Najas gracillima
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Najadaceae]]</div><div class="higher-taxon"><small>genus</small>[[Najas]]</div><div class="higher-taxon"><small>species</small>[[Najas gracillima]]</div></div>
|volume=Volume 22
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>slightly branched distally, 4.5–48 cm × 0.2–0.7 mm; internodes 0.1–3.2 cm, without prickles. <b>Leaves</b> spreading to ascending with age, 0.6–2.8 cm, lax in age; sheath 0.5–1.5 mm wide, apex truncate; blade 0.1–0.5 mm wide, margins minutely serrulate, teeth 13–17 per side, apex acute with 2–3 teeth, teeth unicellular; midvein without prickles abaxially. <b>Flowers</b> 1–3 per axil, staminate and pistillate on same plants. <b>Staminate</b> flowers in distal axils, 1.5–2 mm; involucral beaks 2-lobed, 0.8 mm; anthers 1-loculed, 1.3 mm. <b>Pistillate</b> flowers distal to proximal on plant, 0.5–2.7 mm; styles 0.3–1.5 mm; stigmas 2-lobed. <b>Seeds</b> not recurved, light brown, fusiform, 2–3.2 × 0.4–0.7 mm, apex with style situated offat center; testa dull, 3 cell layers thick, pitted; aeroleareoles regularly arranged in 40 longitudinal rows, not ladderlike, 4-angled, longer than broad, end walls raised. <b>2n</b> = 24, 36.</span><!--

-->{{Treatment/Body
|phenology=Flowering summer–fall.
|habitat=Soft water lakes
|elevation=0–200 m
|distribution=Man.;Ont.;Nfld. and Labr. (Nfld.);N.S.;Ala.;Calif.;Conn.;Del.;D.C.;Ill.;Ind.;Ky.;Maine;Md.;Mass.;Mich.;Minn.;Mo.;N.H.;N.J.;N.Y.;N.C.;Ohio;Pa.;R.I.;Tenn.;Vt.;Va.;Wis.;Eurasia.
|discussion=<p>No specimens were seen from in Alberta, Manitoba, or Quebec, but the species is to be expected there.</p><!--
--><p><i>Najas gracillima</i> is most similar to <i>N. minor</i>, especially in vegetative condition. <i>Najas gracillima</i>, however, can be separated from the latter species by its style arising off-center at the apex of the ovary wall and by its aeroleareoles being longer than broad. Late in the growing season, the leaves of <i>N. minor</i> become recurved; those of <i>N. gracillima</i> do not.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Najas gracillima
|authority=(A. Braun ex Engelmann) Magnus
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Najas indica var. gracillima
|family=Najadaceae
|phenology=Flowering summer–fall.
|habitat=Soft water lakes
|elevation=0–200 m
|distribution=Man.;Ont.;Nfld. and Labr. (Nfld.);N.S.;Ala.;Calif.;Conn.;Del.;D.C.;Ill.;Ind.;Ky.;Maine;Md.;Mass.;Mich.;Minn.;Mo.;N.H.;N.J.;N.Y.;N.C.;Ohio;Pa.;R.I.;Tenn.;Vt.;Va.;Wis.;Eurasia.
|reference=None
|publication title=Beitrage zur Kenntniss der Gattung Najas
|publication year=1870
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V22/V22_215.xml
|genus=Najas
|species=Najas gracillima
}}<!--

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