View source for Persicaria maculosa

{{Treatment/ID
|accepted_name=Persicaria maculosa
|accepted_authority=Gray
|publications={{Treatment/Publication
|title=Nat. Arr. Brit. Pl.
|place=2: 269. 1821
|year=1821
}}
|common_names=Spotted lady’s-thumb;redshank;renouée persicaire
|basionyms={{Treatment/ID/Basionym
|name=Polygonum persicaria
|authority=Linnaeus
|publication_title=Sp. Pl.
|publication_place=1: 361. 1753
}}
|synonyms={{Treatment/ID/Synonym
|name=Persicaria fusiformis
|authority=(Greene) Greene
}} {{Treatment/ID/Synonym
|name=Persicaria vulgaris
|authority=Webb & Moquin-Tandon
}} {{Treatment/ID/Synonym
|name=Polygonum fusiforme
|authority=Greene
}} {{Treatment/ID/Synonym
|name=Polygonum persicaria var. ruderale
|authority=(Salisbury) Meisner
}} {{Treatment/ID/Synonym
|name=Polygonum puritanorum
|authority=unknown
}}
|hierarchy=Polygonaceae;Polygonaceae subfam. Polygonoideae;Persicaria;Persicaria sect. Persicaria;Persicaria maculosa
|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. Persicaria]]</div><div class="higher-taxon"><small>species</small>[[Persicaria maculosa]]</div></div>
|volume=Volume 5
|mention_page=page 583, 586, 594
|treatment_page=page 593
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>annual, (0.5–)1–7(–13) dm; roots also often arising from proximal nodes; rhizomes and stolons absent. <b>Stems</b> procumbent, decumbent, ascending, or erect, simple or branched, without obvious ribs, glabrous or appressed-pubescent. <b>Leaves</b>: ocrea light brown, cylindric, 4–10(–15) mm, chartaceous, base inflated, margins truncate, ciliate with hairs 1–3.5(–5) mm, surface glabrous or strigose, rarely with spreading hairs, not glandular-punctate; petiole 0.1–0.8 cm, glabrous or strigose, leaves sometimes sessile; blade often with dark triangular or lunate blotch adaxially, lanceolate to narrowly ovate, (1–)5–10(–18) × (0.2–)1–2.5(–4) cm, base tapered or cuneate, margins antrorsely strigose, apex acute to acuminate, faces glabrous or strigose, especially along midveins, sometimes glandular-punctate abaxially. <b>Inflorescences</b> terminal and axillary, erect, usually uninterrupted, 10–45(–60) × 7–12 mm; peduncle 10–50 mm, glabrous or, rarely, pubescent; ocreolae overlapping or sometimes interrupted proximally, margins ciliate with bristles 0.2–1.3(–2) mm. <b>Pedicels</b> ascending, 1–2.5 mm. <b>Flowers</b> 4–14 per ocreate fascicle, homostylous; perianth greenish white proximally and roseate distally or entirely roseate, not glandular-punctate, scarcely accrescent; tepals 4–5, connate ca. 1/3 their length, obovate, 2–3.5 mm, veins prominent, not anchor-shaped, margins entire, apex obtuse to rounded; stamens 4–8, included; anthers yellow or pink, ovate; styles 2–3, connate proximally. <b>Achenes</b> included or apex exserted, brownish black to black, discoid or biconvex to 3-gonous, (1.9–)2–2.7 × (1.5–) 1.8–2.2 mm, shiny, smooth. <b>2n</b> = 44.</span><!--

-->{{Treatment/Body
|phenology=Flowering Mar–Nov.
|habitat=Weedy, moist semiwaste to cultivated areas
|elevation=0-2500 m
|distribution=Greenland;St. Pierre and Miquelon;Alta.;B.C.;Man.;N.B.;Nfld. and Labr.;N.S.;Ont.;P.E.I.;Que.;Sask.;Yukon;Ala.;Alaska;Ariz.;Ark.;Calif.;Colo.;Conn.;Del.;D.C.;Fla.;Ga.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Mont.;Nebr.;Nev.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Oreg.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo.;Eurasia;Africa;Pacific Islands (New Zealand).
|discussion=<p>An allozyme study by L. L. Consaul et al. (1991) provided evidence of the allotetraploid origin of <i>Persicaria maculosa</i>, with P. lapathifolium as one of the parents. Plants with stems spreading-hairy and peduncles stipitate-glandular have been named <i>P. maculosa</i> subsp. hirsuticaulis (Danser) S. Ekman & Knutsson. Material referable to this subspecies has not been seen among North American specimens. Hybrids between <i>P. maculosa</i> and <i>P. minor</i> have been documented in Europe (R. H. Roberts 1977).</p><!--
--><p>The Cherokee, Chippewa, and Iroquois prepared simple or compound decoctions of <i>Persicaria maculosa</i>, which they used as dermatological, urinary, gastrointestinal, and veterinary aids, for heart medicine, and as an analgesic (D. E. Moerman 1998).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Persicaria maculosa
|author=
|authority=Gray
|rank=species
|parent rank=section
|synonyms=Persicaria fusiformis;Persicaria vulgaris;Polygonum fusiforme;Polygonum persicaria var. ruderale;Polygonum puritanorum
|basionyms=Polygonum persicaria
|family=Polygonaceae
|phenology=Flowering Mar–Nov.
|habitat=Weedy, moist semiwaste to cultivated areas
|elevation=0-2500 m
|distribution=Greenland;St. Pierre and Miquelon;Alta.;B.C.;Man.;N.B.;Nfld. and Labr.;N.S.;Ont.;P.E.I.;Que.;Sask.;Yukon;Ala.;Alaska;Ariz.;Ark.;Calif.;Colo.;Conn.;Del.;D.C.;Fla.;Ga.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Mont.;Nebr.;Nev.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Oreg.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo.;Eurasia;Africa;Pacific Islands (New Zealand).
|introduced=true
|reference=None
|publication title=Nat. Arr. Brit. Pl.
|publication year=1821
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V5/V5_1208.xml
|subfamily=Polygonaceae subfam. Polygonoideae
|genus=Persicaria
|section=Persicaria sect. Persicaria
|species=Persicaria maculosa
}}<!--

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