View source for Fallopia scandens

{{Treatment/ID
|accepted_name=Fallopia scandens
|accepted_authority=(Linnaeus) Holub
|publications={{Treatment/Publication
|title=Folia Geobot. Phytotax.
|place=6: 176. 1971
|year=1971
}}
|common_names=Climbing false-buckwheat
|special_status={{Treatment/ID/Special_status
|code=W
|label=Weedy
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Basionym
|name=Polygonum scandens
|authority=Linnaeus
|rank=species
|publication_title=Sp. Pl.
|publication_place=1: 364. 1753
}}
|synonyms={{Treatment/ID/Synonym
|name=Bilderdykia cristata
|authority=(Engelmann & A. Gray) Greene
|rank=species
}} {{Treatment/ID/Synonym
|name=Bilderdykia scandens
|authority=(Linnaeus) Greene
|rank=species
}} {{Treatment/ID/Synonym
|name=Bilderdykia scandens var. cristata
|authority=(Engelmann & A. Gray) C. F. Reed
|rank=variety
}} {{Treatment/ID/Synonym
|name=Fallopia cristata
|authority=Engelmann & A. Gray
|rank=species
}} {{Treatment/ID/Synonym
|name=Polygonum cristatum
|authority=(Linnaeus) Shinners
|rank=species
}} {{Treatment/ID/Synonym
|name=Polygonum dumetorum var. scandens
|authority=(Linnaeus) A. Gray
|rank=variety
}} {{Treatment/ID/Synonym
|name=Polygonum scandens var. cristatum
|authority=(Engelmann & A. Gray) Gleason
|rank=variety
}} {{Treatment/ID/Synonym
|name=Reynoutria scandens
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=Reynoutria scandens var. cristata
|authority=(Engelmann & A. Gray) Shinners
|rank=variety
}} {{Treatment/ID/Synonym
|name=Tiniaria cristata
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=Tiniaria scandens
|authority=
|rank=species
}}
|hierarchy=Polygonaceae;Polygonaceae subfam. Polygonoideae;Fallopia;Fallopia scandens
|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>[[Fallopia]]</div><div class="higher-taxon"><small>species</small>[[Fallopia scandens]]</div></div>
|volume=Volume 5
|mention_page=page 542, 546
|treatment_page=page 545
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial or annual, not rhizomatous, 1–5 m. <b>Stems</b> scandent or sprawling, freely branched, herbaceous, glabrous or papillose to scabrid, not glaucous. <b>Leaves</b>: ocrea usually deciduous, tan or brown, cylindric to funnelform, 1–6 mm, margins oblique, face not fringed with reflexed hairs and slender bristles at base, otherwise glabrous or scabrid; petiole 0.5–10 cm, glabrous or scabrid in lines; blade cordate, truncate-deltate, or hastate, 2–14 × 2–7 cm, base cordate, margins wavy, scabrid, apex acuminate, abaxially and adaxially faces glabrous or papillose to scabrid, not glaucous, the abaxial rarely minutely dotted. <b>Inflorescences</b> axillary, erect or spreading, racemelike, 1–28 cm, axes scabrid; peduncle 0.1–7 cm or absent, scabrid. <b>Pedicels</b> ascending or spreading to reflexed, articulated distally, 4–8 mm, glabrous. <b>Flowers</b> bisexual, 3–6 per ocreate fascicle; perianth accrescent in fruit, green to white or pinkish, 3.8–8 mm including stipelike base, glabrous; tepals elliptic to obovate, apex obtuse to acute, outer 3 winged; stamens 8; filaments flattened proximally, pubescent proximally; styles connate; stigmas capitate. <b>Achenes</b> included, dark brown to black, 2–6 × 1.4–3.5 mm, shiny, smooth; fruiting perianth glabrous, wings undulate or crinkled, rarely flat, (0.7–)1.5–2.1 mm wide, decurrent on stipelike base nearly to articulation, margins wavy-crenate to incised or lacerate, rarely entire. <b>2n</b> = 20.</span><!--

-->{{Treatment/Body
|phenology=Flowering Aug–Nov.
|habitat=Low habitats
|elevation=0-1800 m
|distribution=Alta.;Man.;N.B.;N.S.;Ont.;P.E.I.;Que.;Sask.;Ala.;Ark.;Conn.;Del.;D.C.;Fla.;Ga.;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Nebr.;N.H.;N.J.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Vt.;Va.;W.Va.;Wis.;Wyo.
|discussion=<p><i>Fallopia scandens</i> has a complex nomenclatural history, which in North America usually involves three taxonomic elements: <i>F. scandens</i> and F. cristata, both native in North America, and <i>F. dumetorum</i>, which is native in Europe. Achene and perianth characters have been used to distinguish these elements, but variable and intergrading morphologies have caused taxonomists to combine them variously. Morphometric (S. T. Kim et al. 2000) and flavonoid (M. H. Kim et al. 2000) studies suggest that <i>F. scandens</i> and <i>F. dumetorum</i> are distinct species. Where <i>F. scandens</i> is absent, European specimens of <i>F. dumetorum</i> are distinctive. This distinction is far less clear in North America, where both species occur. Experience suggests that many North American herbarium specimens attributed to <i>F. dumetorum</i> are misidentified.</p><!--
--><p><i>Fallopia</i> cristata has been distinguished from <i>F. scandens</i> and <i>F. dumetorum</i> by its smaller fruiting perianths (5–7[–9] mm) bearing narrower (1.2–1.7 mm wide), undulate-crenate or lacerate wings, and smaller achenes (2.1–2.7 mm). Extreme forms are easily identified; some specimens grade gradually into <i>F. scandens</i>, making recognition of F. cristata of questionable utility. S. T. Kim et al. (2000) used morphometric studies as a basis for recommending that F. cristata is best treated as a variety of <i>F. scandens</i>.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Fallopia scandens
|authority=(Linnaeus) Holub
|rank=species
|parent rank=genus
|synonyms=Bilderdykia cristata;Bilderdykia scandens;Bilderdykia scandens var. cristata;Fallopia cristata;Polygonum cristatum;Polygonum dumetorum var. scandens;Polygonum scandens var. cristatum;Reynoutria scandens;Reynoutria scandens var. cristata;Tiniaria cristata;Tiniaria scandens
|basionyms=Polygonum scandens
|family=Polygonaceae
|phenology=Flowering Aug–Nov.
|habitat=Low habitats
|elevation=0-1800 m
|distribution=Alta.;Man.;N.B.;N.S.;Ont.;P.E.I.;Que.;Sask.;Ala.;Ark.;Conn.;Del.;D.C.;Fla.;Ga.;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Nebr.;N.H.;N.J.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Vt.;Va.;W.Va.;Wis.;Wyo.
|reference=None
|publication title=Folia Geobot. Phytotax.
|publication year=1971
|special status=Weedy;Endemic
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V5/V5_1115.xml
|subfamily=Polygonaceae subfam. Polygonoideae
|genus=Fallopia
|species=Fallopia scandens
}}<!--

-->[[Category:Treatment]][[Category:Fallopia]]