View source for Polygonum aviculare subsp. rurivagum

{{Treatment/ID
|accepted_name=Polygonum aviculare subsp. rurivagum
|accepted_authority=(Jordan ex Boreau) Berher
|publications={{Treatment/Publication
|title=Fl. Vosges,
|place=195. 1887
|year=1887
}}
|common_names=Narrow-leaf knotweed
|special_status={{Treatment/ID/Special_status
|code=W
|label=Weedy
}}{{Treatment/ID/Special_status
|code=I
|label=Introduced
}}
|basionyms={{Treatment/ID/Basionym
|name=Polygonum rurivagum
|authority=Jordan ex Boreau
|rank=species
|publication_title=Fl. Centre France ed.
|publication_place=3, 2: 560. 1857
}}
|synonyms={{Treatment/ID/Synonym
|name=Polygonum aviculare var. angustissimum
|authority=Meisner
|rank=variety
}} {{Treatment/ID/Synonym
|name=Polygonum heterophyllum var. angustissimum
|authority=(Meisner) Lindman
|rank=variety
}} {{Treatment/ID/Synonym
|name=Polygonum heterophyllum subsp. rurivagum
|authority=(Jordan ex Boreau) Lindman
|rank=subspecies
}}
|hierarchy=Polygonaceae;Polygonaceae subfam. Polygonoideae;Polygonum;Polygonum sect. Polygonum;Polygonum aviculare;Polygonum aviculare subsp. rurivagum
|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>[[Polygonum]]</div><div class="higher-taxon"><small>section</small>[[Polygonum sect. Polygonum]]</div><div class="higher-taxon"><small>species</small>[[Polygonum aviculare]]</div><div class="higher-taxon"><small>subspecies</small>[[Polygonum aviculare subsp. rurivagum]]</div></div>
|volume=Volume 5
|mention_page=page 557
|treatment_page=page 560
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>green, homophyllous to heterophyllous. <b>Stems</b> 1–10, procumbent to ascending, branched at most nodes, proximal branches divaricate, not wiry, 10–40 cm. <b>Leaves</b>: ocrea (6–)8–12 mm, proximal part cylindric, distal part with veins conspicuous, soon disintegrating into persistent fibers; petiole 0.3–2 mm; blade green, lateral veins strongly raised adaxially, narrowly elliptic to linear-lanceolate, (10–)15–27(–30) × 0.5–4.8(–8) mm, (4.5–)5–15(–19) times as long as wide, apex acute; stem leaves 1.2–2.4 times as long as branch leaves. <b>Cymes</b> uniformly distributed along stems and branches, 1–3-flowered. <b>Pedicels</b> enclosed in or exserted from ocreae, 1.5–3 mm. <b>Flowers</b>: perianth 2.2–3.1 mm, 1.6–2.6 times as long as wide; tube 26–40(–42)% of perianth length; tepals often not overlapping, green with pink or red margins, oblong, ± cucullate, outer tepals not pouched at base; veins branched, moderately to strongly thickened; stamens 7–8. <b>Achenes</b> usually exserted from perianth, blackish brown, ovate, 3-gonous, 2.1–2.6(–3) mm, faces subequal or unequal, flat to concave, apex straight, coarsely striate-tubercled; late-season achenes uncommon, 2.5–4 mm. <b>2n</b> = 60.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jul–Oct.
|habitat=Disturbed places
|elevation=0-1000
|distribution=Alta.;Man.;N.B.;Nfld. and Labr. (Nfld.);Que.;Sask.;Calif.;Ind.;Iowa;Maine;Mass.;N.Y.;R.I.;S.Dak.;W.Va.;Europe.
|introduced=true
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Polygonum aviculare subsp. rurivagum
|authority=(Jordan ex Boreau) Berher
|rank=subspecies
|parent rank=species
|synonyms=Polygonum aviculare var. angustissimum;Polygonum heterophyllum var. angustissimum;Polygonum heterophyllum subsp. rurivagum
|basionyms=Polygonum rurivagum
|family=Polygonaceae
|phenology=Flowering Jul–Oct.
|habitat=Disturbed places
|elevation=0-1000
|distribution=Alta.;Man.;N.B.;Nfld. and Labr. (Nfld.);Que.;Sask.;Calif.;Ind.;Iowa;Maine;Mass.;N.Y.;R.I.;S.Dak.;W.Va.;Europe.
|introduced=true
|reference=None
|publication title=Fl. Vosges,
|publication year=1887
|special status=Weedy;Introduced
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V5/V5_1142.xml
|subfamily=Polygonaceae subfam. Polygonoideae
|genus=Polygonum
|section=Polygonum sect. Polygonum
|species=Polygonum aviculare
|subspecies=Polygonum aviculare subsp. rurivagum
}}<!--

-->[[Category:Treatment]][[Category:Polygonum aviculare]]