Potentilla Linnaeus (Q3942)
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Potentilla is a taxon with the rank genus within the tribe Potentilleae
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Potentilla Linnaeus
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Potentilla is a taxon with the rank genus within the tribe Potentilleae
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taxon/id/Potentilla Linnaeus
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Potentilla Linnaeus
Potentilla
Linnaeus
FNA Editorial Committee. 2014. Flora of North America north of Mexico. Volume 9: Magnoliophyta: Picramniaceae to Rosaceae. Oxford University Press, New York.
accepted
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mostly montane in Southern Hemisphere and equatorial regions
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Herbs, perennial, rarely annual or biennial, rosetted to densely matted, 0.1–7 (–10) dm, sparsely to densely hairy hairs straight, crisped, and/or cottony, sometimes glabrate, sometimes glandular;
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usually short-rhizomatous, sometimes stoloniferous.
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Stems 1–many, prostrate to erect, sometimes rooting at nodes, usually ± green, sometimes reddish.
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Leaves winter marcescent or persistent, primarily basal or cauline, cauline (0–) 1–9, reduced or well-developed, alternate, rarely opposite, ternate, palmate, subpalmate, or odd-pinnate, sometimes ± bipinnate;
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stipules persistent, basally adnate to petiole, linear to ovate, margins entire or lobed, sometimes toothed;
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blade ± cordate or reniform to narrowly elliptic in outline, 0.5–25 (–30) cm, foliaceous, rarely ± coriaceous;
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leaflets 3–15 (–41), terminal sometimes confluent with distalmost lateral ones, separate to overlapping, narrowly oblanceolate to obovate, elliptic, oblong, cuneate, or flabellate in outline, margins flat or revolute, toothed to divided nearly to base into linear to oblanceolate lobes, sometimes entire, venation pinnate or palmate.
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Inflorescences terminal, sometimes axillary on stolons, 1–100+-flowered, often cymose, sometimes solitary or racemiform, open to ± congested;
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bracts present, usually ± reduced;
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bracteoles absent.
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Pedicels present, straight or becoming ± recurved in fruit.
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Flowers (5–) 8–20 (–26) mm diam.;
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epicalyx bractlets (4 or) 5 (–10);
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hypanthium patelliform to cupulate, rarely turbinate, 0.5–2.5 (–5) × (1.5–) 2–7 (–10) mm;
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sepals (4 or) 5 (–10), spreading at anthesis, lanceolate to broadly ovate or deltate;
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petals (4 or) 5 (–10), pale to bright-yellow, less often dark reddish, reddish orange, or white, oblanceolate or obovate to most commonly obcordate to nearly round, rarely elliptic (sect. Pentaphylloides);
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stamens (5–) 20 (–30), shorter than petals;
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carpels 3–260, glabrous, rarely sparsely hairy, styles usually subapical, rarely lateral;
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Fruits aggregated achenes, individually deciduous, 1–260, obliquely ± ovoid, 0.5–2.6 mm, glabrous or rarely ± hairy apically or on style scar;
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hypanthium persistent;
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sepals persistent, erect;
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bipinnate
sometimes more or less
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less cordate or reniform
narrowly elliptic
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coriaceous
rarely more or less
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racemiform open
more or less congested
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racemiform open
more or less congested
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lanceolate
broadly ovate or deltate
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obliquely more or less
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rarely more or less; apically
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rough-thickened
often; basally to nearly
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narrowly oblanceolate
obovate elliptic oblong cuneate or flabellate
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narrowly oblanceolate
obovate elliptic oblong cuneate or flabellate
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narrowly oblanceolate
obovate elliptic oblong cuneate or flabellate
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narrowly oblanceolate
obovate elliptic oblong cuneate or flabellate
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narrowly oblanceolate
obovate elliptic oblong cuneate or flabellate
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