Difference between revisions of "Persicaria minor"
Seznam, 72. 1852.
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|common_names=Small water-pepper;petite renouée | |common_names=Small water-pepper;petite renouée | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=I | ||
| + | |label=Introduced | ||
| + | }} | ||
|basionyms={{Treatment/ID/Basionym | |basionyms={{Treatment/ID/Basionym | ||
|name=Polygonum minus | |name=Polygonum minus | ||
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|elevation=0-100 m | |elevation=0-100 m | ||
|distribution=N.B.;Ont.;Que.;Conn.;Ind.;La.;Mass.;Nebr.;Pa.;Vt.;Va.;Europe. | |distribution=N.B.;Ont.;Que.;Conn.;Ind.;La.;Mass.;Nebr.;Pa.;Vt.;Va.;Europe. | ||
| + | |introduced=true | ||
|discussion=<p><i>Persicaria minor</i> is synonymized with <i>P. maculosa</i> in most North American floras; its distribution in the flora area is poorly known. Hybrids between <i>P. minor</i> and <i>P. maculosa</i> have been documented in Europe (R. H. Roberts 1977).</p> | |discussion=<p><i>Persicaria minor</i> is synonymized with <i>P. maculosa</i> in most North American floras; its distribution in the flora area is poorly known. Hybrids between <i>P. minor</i> and <i>P. maculosa</i> have been documented in Europe (R. H. Roberts 1977).</p> | ||
|tables= | |tables= | ||
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|publication title=Seznam, | |publication title=Seznam, | ||
|publication year=1852 | |publication year=1852 | ||
| − | |special status= | + | |special status=Introduced |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V5/V5_1207.xml |
|subfamily=Polygonaceae subfam. Polygonoideae | |subfamily=Polygonaceae subfam. Polygonoideae | ||
|genus=Persicaria | |genus=Persicaria | ||
Latest revision as of 22:08, 5 November 2020
Plants annual, 0.5–3(–4) dm; roots also sometimes at from proximal nodes; rhizomes and stolons absent. Stems decumbent or ascending, branched proximally, scarcely ribbed, glabrous or scabrous distally. Leaves: ocrea brownish, cylindric, 3–10 mm, chartaceous, base not inflated, margins truncate, ciliate with bristles (0.3–)1–3(–5) mm, surface glabrous or strigose, not glandular-punctate; petiole 0.1–0.2 cm, glabrous or strigose, leaves sometimes sessile; blade without dark triangular or lunate blotch adaxially, linear to linear-lanceolate, (1–)2–7.5(–10) × (0.2–)0.4–1(–2.3) cm, base tapered to cuneate, margins antrorsely scabrous, apex acute to acuminate, faces glabrous or sparingly strigose, especially along midveins, not glandular-punctate. Inflorescences terminal and axillary, ascending to erect, usually interrupted proximally, uninterrupted distally, 10–50 × 2–4 mm; peduncle (0–)2–25 mm, sometimes absent on axillary inflorescences and flowers thus enclosed in ocreae, glabrous; ocreolae not overlapping proximally, usually overlapping distally, margins ciliate with bristles (0.1–)0.6–2(–2.7) mm. Pedicels ascending, 0.5–1 mm. Flowers 1–3(–4) per ocreate fascicle, homostylous; perianth roseate to red, rarely white, glabrous, not glandular-punctate, scarcely accrescent; tepals 5, connate ca. 1/3 their length, obovate to elliptic, 2.5–3 mm, veins not prominent, not anchor-shaped, margins entire, apex obtuse to rounded; stamens 5(–6), included; anthers yellow to pink, elliptic; styles 2(–3), connate at bases. Achenes included, brownish black to black, biconvex or, rarely, 3-gonous, (1.5–)1.8–2.3(– 2.7) × (1.1–)1.3–1.5(–1.8) mm, shiny, smooth.
Phenology: Flowering Jul–Oct.
Habitat: Damp, open places
Elevation: 0-100 m
Distribution
Introduced; N.B., Ont., Que., Conn., Ind., La., Mass., Nebr., Pa., Vt., Va., Europe.
Discussion
Persicaria minor is synonymized with P. maculosa in most North American floras; its distribution in the flora area is poorly known. Hybrids between P. minor and P. maculosa have been documented in Europe (R. H. Roberts 1977).
Selected References
None.