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/Synonym
|name=Polygonum persicaria
|authority=Linnaeus
}}
|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 Persicaria maculosa, with P. lapathifolium as one of the parents. Plants with stems spreading-hairy and peduncles stipitate-glandular have been named P. maculosa subsp. hirsuticaulis (Danser) S. Ekman & Knutsson. Material referable to this subspecies has not been seen among North American specimens. Hybrids between P. maculosa and P. minor have been documented in Europe (R. H. Roberts 1977).</p><!--
--><p>The Cherokee, Chippewa, and Iroquois prepared simple or compound decoctions of Persicaria maculosa, 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/9216fc802291cd3df363fd52122300479582ede7/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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