View source for Rumex longifolius

{{Treatment/ID
|accepted_name=Rumex longifolius
|accepted_authority=de Candolle in J. Lamarck and A. P. de Candolle
|publications={{Treatment/Publication
|title=in J. Lamarck and A. P. de Candolle, Fl. Franç. ed.
|place=3, 6: 368. 1815
|year=1815
}}
|common_names=Long-leaved or northern or dooryard dock;rumex a feuilles longues
|special_status={{Treatment/ID/Special_status
|code=W
|label=Weedy
}}{{Treatment/ID/Special_status
|code=I
|label=Introduced
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Rumex domesticus
|authority=Hartman
|rank=species
}} {{Treatment/ID/Synonym
|name=Rumex hippolapathum
|authority=Fries
|rank=species
}}
|hierarchy=Polygonaceae;Polygonaceae subfam. Polygonoideae;Rumex;Rumex subg. Rumex;Rumex sect. Rumex;Rumex longifolius
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Polygonaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Polygonaceae subfam. Polygonoideae]]</div><div class="higher-taxon"><small>genus</small>[[Rumex]]</div><div class="higher-taxon"><small>subgenus</small>[[Rumex subg. Rumex]]</div><div class="higher-taxon"><small>section</small>[[Rumex sect. Rumex]]</div><div class="higher-taxon"><small>species</small>[[Rumex longifolius]]</div></div>
|volume=Volume 5
|mention_page=page 493, 494, 495, 518
|treatment_page=page 522
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism duration;whole_organism pubescence;whole_organism relief;whole_organism growth form;rootstock shape;rootstock orientation"><b>Plants </b>perennial, glabrous or very indistinctly papillose normally only on branches of inflorescence, or on veins of leaf-blades abaxially, with fusiform, vertical rootstock.</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem position;stem position;stem atypical some measurement;stem some measurement"><b>Stems </b>erect, branched distal to middle, 50–120 (–160) cm.</span> <span class="statement" id="st-d0_s2" data-properties="ocreum duration;ocreum duration"><b>Leaves:</b> ocrea deciduous or partially persistent at maturity;</span> <span class="statement" id="st-d0_s3" data-properties="blade shape;blade atypical length;blade length;blade width;blade l w ratio;base shape;base shape;base shape;base shape;base shape;margin shape;margin shape;margin shape;margin prominence or shape;apex shape;apex shape">blade broadly lanceolate to ovatelanceolate or oblong-lanceolate, normally 25–50 (–60) × 7–15 cm, ca. 3–4 times as long as wide, base broadly cuneate, rounded-truncate, or slightly cordate, margins entire, undulate or weakly crisped, occasionally flat, apex acute or subacute.</span> <span class="statement" id="st-d0_s4" data-properties="inflorescence position or structure subtype;inflorescence density;inflorescence arrangement;stem position or shape;stem quantity;branch course;branch course"><b>Inflorescences </b>terminal, occupying distal 1/2 of stem, normally dense, narrowly paniculate, branches usually straight or arcuate.</span> <span class="statement" id="st-d0_s5" data-properties="pedicel architecture;pedicel shape;pedicel some measurement;articulation shape"><b>Pedicels </b>articulated in proximal 1/3, filiform, 4–9 mm, articulation distinctly swollen.</span> <span class="statement" id="st-d0_s6" data-properties="flower quantity"><b>Flowers </b>10–20 in whorls;</span> <span class="statement" id="st-d0_s7" data-properties="inner tepal shape;inner tepal shape;inner tepal atypical length;inner tepal atypical length;inner tepal length;inner tepal atypical width;inner tepal atypical width;inner tepal width;base shape;margin shape;margin shape;margin shape;apex architecture or relief;apex prominence or shape;apex shape;apex shape">inner tepals broadly orbiculate or reniform, (4.5–) 5–6 (–7) × (4.5–) 5–7 (–7.5) mm, base usually distinctly cordate, margins entire or subentire to very weakly erose, flat, apex obtuse or, rarely, subacute;</span> <span class="statement" id="st-d0_s8" data-properties="tubercle presence;tubercle quantity;tubercle prominence;midvein size or width;midvein width">tubercles normally absent,sometimes with 1 indistinct tubercle or slightly thickened midvein less than 1–1.3 mm wide.</span> <span class="statement" id="st-d0_s9" data-properties="achene coloration;achene coloration;achene atypical length;achene atypical length;achene length;achene width;2n chromosome quantity">achenes dark-brown or brown, (2.5–) 3–3.5 (–4) × 1.5–2 mm. <b>2n</b> = 60.</span><!--

-->{{Treatment/Body
|phenology=Flowering late spring–summer.
|habitat=Waste places, roadsides, cultivated fields, river valleys, meadows
|elevation=0-1000 m
|distribution=Greenland;Alta.;B.C.;Man.;N.B.;Nfld. and Labr. (Nfld.);N.S.;Ont.;P.E.I.;Que.;Sask.;Yukon;Alaska;Conn.;Maine;Mass.;Mich.;Minn.;N.H.;N.Y.;N.Dak.;R.I.;Vt.;Wis.;n temperate Europe;w temperate Asia;elsewhere
|introduced=true
|discussion=<p>Most records of Rumex longifolius from the Great Plains (Great Plains Flora Association 1977; R. B. Kaul 1986) refer to R. pseudonatronatus (J. E. Dawson 1979), which can be distinguished from R. longifolius by its narrower leaves, smaller and more distinctly triangular inner tepals, and purplish or reddish brown stems at maturity. The two species are closely related; they were placed by K. H. Rechinger (1949) in subsect. Longifolii Rechinger f.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Rumex longifolius
|authority=de Candolle in J. Lamarck and A. P. de Candolle
|rank=species
|parent rank=section
|synonyms=Rumex domesticus;Rumex hippolapathum
|basionyms=
|family=Polygonaceae
|phenology=Flowering late spring–summer.
|habitat=Waste places, roadsides, cultivated fields, river valleys, meadows
|elevation=0-1000 m
|distribution=Greenland;Alta.;B.C.;Man.;N.B.;Nfld. and Labr. (Nfld.);N.S.;Ont.;P.E.I.;Que.;Sask.;Yukon;Alaska;Conn.;Maine;Mass.;Mich.;Minn.;N.H.;N.Y.;N.Dak.;R.I.;Vt.;Wis.;n temperate Europe;w temperate Asia;elsewhere
|introduced=true
|reference=None
|publication title=in J. Lamarck and A. P. de Candolle, Fl. Franç. ed.
|publication year=1815
|special status=Weedy;Introduced
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V5/V5_1070.xml
|subfamily=Polygonaceae subfam. Polygonoideae
|genus=Rumex
|subgenus=Rumex subg. Rumex
|section=Rumex sect. Rumex
|species=Rumex longifolius
|2n chromosome quantity=60
|achene atypical length=3.5mm;4mm
|achene coloration=brown;dark-brown
|achene length=3mm;3.5mm
|achene width=1.5mm;2mm
|apex architecture or relief=erose
|apex prominence or shape=flat
|apex shape=,;obtuse;subacute;acute
|articulation shape=swollen
|base shape=cordate;cordate;rounded-truncate;cordate;rounded-truncate;cuneate
|blade atypical length=50cm;60cm
|blade l w ratio=3-4
|blade length=25cm;50cm
|blade shape=broadly lanceolate;ovatelanceolate or oblong-lanceolate
|blade width=7cm;15cm
|branch course=arcuate;straight
|flower quantity=10;20
|inflorescence arrangement=paniculate
|inflorescence density=dense
|inflorescence position or structure subtype=terminal
|inner tepal atypical length=6mm;7mm
|inner tepal atypical width=7mm;7.5mm
|inner tepal length=5mm;6mm
|inner tepal shape=reniform;orbiculate
|inner tepal width=5mm;7mm
|margin prominence or shape=flat
|margin shape=subacute;subentire;entire;crisped;undulate;entire
|midvein size or width=thickened
|midvein width=0mm;1-1.3mm
|ocreum duration=persistent;deciduous
|pedicel architecture=articulated
|pedicel shape=filiform
|pedicel some measurement=4mm;9mm
|rootstock orientation=vertical
|rootstock shape=fusiform
|stem atypical some measurement=120cm;160cm
|stem orientation=erect
|stem position=distal;middle
|stem position or shape=distal
|stem quantity=1/2
|stem some measurement=50cm;120cm
|tubercle presence=absent
|tubercle prominence=indistinct
|tubercle quantity=1
|whole_organism duration=perennial
|whole_organism growth form=plant
|whole_organism pubescence=glabrous
|whole_organism relief=papillose
}}<!--

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