View source for Persicaria chinensis

{{Treatment/ID
|accepted_name=Persicaria chinensis
|accepted_authority=(Linnaeus) H. Gross
|publications={{Treatment/Publication
|title=Bot. Jahrb. Syst.
|place=49: 269. 1913
|year=1913
}}
|common_names=Chinese knotweed
|basionyms={{Treatment/ID/Synonym
|name=Polygonum chinense
|authority=Linnaeus
}}
|synonyms=
|hierarchy=Polygonaceae;Polygonaceae subfam. Polygonoideae;Persicaria;Persicaria sect. Cephalophilon;Persicaria chinensis
|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>[[Persicaria]]</div><div class="higher-taxon"><small>section</small>[[Persicaria sect. Cephalophilon]]</div><div class="higher-taxon"><small>species</small>[[Persicaria chinensis]]</div></div>
|volume=Volume 5
|mention_page=page 579
|treatment_page=page 580
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>perennial, 7–10 dm; roots not also arising from proximal nodes; rhizomes present. <b>Stems</b> ascending to erect, sometimes scandent, glabrous or retrorsely hispid. <b>Leaves</b>: ocrea brownish, cylindric, 15–25(–50) mm, coriaceous proximally, chartaceous distally, base often inflated, margins oblique, eciliate, surface glabrous or pubescent; petiole 1–2.5 cm, winged at least distally; blade lanceolate to ovate or elliptic, 4–16 × 1.5–8 cm, base truncate to broadly cordate, margins glabrous or antrorsely scabrous with whitish hairs, apex acuminate, faces glabrous or hispid abaxially and adaxially, sometimes pubescent only along veins abaxially, not glandular-punctate but often minutely reddish-punctate abaxially. <b>Inflorescences</b> terminal or terminal and axillary, 3–6 × 3–6 mm; peduncle 10–30 mm, stipitate-glandular along entire length; ocreolae overlapping, margins eciliate. <b>Pedicels</b> mostly ascending, 2–3 mm. <b>Flowers</b> 1–3 per ocreate fascicle; perianth white to pink, campanulate, glabrous, accrescent; tepals 5, ovate, 3–4 mm, apex acute to obtuse; stamens 8, filaments distinct, free; anthers red or purple, elliptic; styles 3, connate proximally. <b>Achenes</b> included in fleshy, bluish black perianth, black, 3-gonous, 2.8–4 × 2–3 mm, dull, minutely punctuate.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jul–Oct.
|habitat=Disturbed places
|elevation=0–100 m
|distribution=Md.;Mass.;N.J.;Asia;introduced also in the Pacific Islands (Hawaii).
|discussion=<p>Varieties of Persicaria chinensis have been distinguished on the basis of stem pubescence, leaf shape, and leaf size. Whether those taxa merit recognition in the flora area is uncertain.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Persicaria chinensis
|author=
|authority=(Linnaeus) H. Gross
|rank=species
|parent rank=section
|synonyms=
|basionyms=Polygonum chinense
|family=Polygonaceae
|phenology=Flowering Jul–Oct.
|habitat=Disturbed places
|elevation=0–100 m
|distribution=Md.;Mass.;N.J.;Asia;introduced also in the Pacific Islands (Hawaii).
|introduced=true
|reference=None
|publication title=Bot. Jahrb. Syst.
|publication year=1913
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V5/V5_1188.xml
|subfamily=Polygonaceae subfam. Polygonoideae
|genus=Persicaria
|section=Persicaria sect. Cephalophilon
|species=Persicaria chinensis
}}<!--

-->[[Category:Treatment]][[Category:Persicaria sect. Cephalophilon]]