Potentilla pensylvanica Linnaeus (Q3973)
Potentilla pensylvanica is a taxon with the rank species within the section Potentilla sect. Pensylvanicae
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Potentilla pensylvanica Linnaeus
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Potentilla pensylvanica is a taxon with the rank species within the section Potentilla sect. Pensylvanicae
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Statements
taxon/id/Potentilla pensylvanica Linnaeus
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Potentilla pensylvanica Linnaeus
Potentilla pensylvanica
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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CA-BC
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Douglas, G.W., G.B. Straley, D.V. Meidinger & J. Pojar. 1998. Illustrated Flora of British Columbia. B.C. Ministry of Environment, Lands & Parks and B.C. Ministry of Forests. Victoria. Crown Publications. 8 vols.
CA-AB
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Moss, E.H. 1983. Flora of Alberta. 2nd edition, revised by J.G. Packer. University of Toronto Press, Toronto. 687 pp.
CA-SK
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Harms, V.L. 2006. Annotated catalogue of Saskatchewan vascular plants. http://www.biodiversity.sk.ca/Docs/AnnotatedCatalogueSKVascPlants2006.pdf
CA-MB
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Manitoba Checklist, 2002
CA-ON
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Newmaster, S.G., A. Lehela, M.J. Oldham, P.W.C. Uhlig & S. McMurray. 1998. Ontario Plant List. Ontario Forest Research Institute, Sault Ste. Marie, Ontario. Forest Information Paper No. 123. 550 pp.
CA-QC
present
introduced
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Marie-Victorin, Fr. 1995. Flore laurentienne. 3e éd. Mise à jour et annotée par L. Brouillet, S.G. Hay, I. Goulet, M. Blondeau, J. Cayouette et J. Labrecque. Gaétan Morin éditeur. 1093 pp.
CA-YT
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Cody, W.J. 2000. Flora of the Yukon Territory. 2nd ed. National Research Press, Ottawa. 669 pp.
CA-NT
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FNA Editorial Committee. 2014. Flora of North America north of Mexico. Volume 9: Magnoliophyta: Picramniaceae to Rosaceae. Oxford University Press, New York. http://www.efloras.org/volume_page.aspx?volume_id=1009&flora_id=1
CA-AB
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CA-BC
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CA-MB
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CA-NT
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CA-ON
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CA-QC
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CA-SK
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CA-YT
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US-AK
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US-AZ
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US-CA
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US-CO
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US-ID
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US-IA
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US-MN
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US-MT
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US-NE
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US-NV
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US-NM
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US-ND
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US-SD
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US-TX
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US-UT
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US-WY
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100–4000 m
100 meter
4,000 meter
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Stems ascending to erect, (0.3–) 1–4 (–6) dm.
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Basal leaves pinnate, (2–) 4–20 (–25) cm;
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petiole 1–8 cm, long hairs sparse to abundant, rarely absent, spreading to ascending, 0.5–3 mm, weak to ± stiff, short hairs abundant to dense, rarely absent, cottony or crisped hairs absent, glands sparse to abundant, often obscured;
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leaflets (2–) 3–5 (–7) per side, on distal 1/2–3/5 of leaf axis, separate to scarcely overlapping, terminal ones narrowly to broadly oblanceolate, (1–) 1.5–5 (–6) × 0.5–1.5 (–2) cm, margins strongly revolute, incised ± 3/4 to midvein, sometimes more or only ± 1/2, undivided medial blade 2–4 (–8) mm wide, teeth 4–8 (–10) per side, triangular-ovate to linear-elliptic, surfaces usually ± dissimilar, abaxial ± grayish to nearly white, rarely green, long hairs sparse to abundant (mostly on veins), rarely absent, 0.5–1.5 mm, ± weak, short hairs usually abundant to dense, rarely absent, crisped and cottony hairs absent, glands ± abundant, sometimes obscured, adaxial green to gray-green, long hairs sparse to abundant, rarely absent, spreading to ascending, ± 1 mm, short hairs ± abundant, sometimes obscured, rarely absent, cottony and crisped hairs absent, glands ± abundant.
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Cauline leaves 1–4.
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Inflorescences (1–) 3–40-flowered, congested or elongating in fruit.
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Pedicels 0.2–1 cm (proximal to 3.5 cm).
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Flowers: epicalyx bractlets usually ± lanceolate-elliptic, rarely ± ovate-elliptic, 3–6 (–8) × (1–) 1.5–2 (–2.5) mm, lengths ± equal to sepals, margins ± revolute;
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hypanthium 3–6 mm diam.;
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sepals (3–) 4–6 (–8) mm, apex acute to obtuse, abaxial surfaces: venation indistinct, glands abundant, ± evident;
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petals pale to bright-yellow, (3–) 4–7 × (3–) 4–7 mm, lengths ± equal to sepals;
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filaments (0.5–) 1–2 mm, anthers 0.5–0.8 (–1) mm;
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carpels 50–100, styles papillate-swollen in proximal ± 1/2, ± 1 mm.
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lanceolate-elliptic
usually more or less
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ovate-elliptic
rarely more or less
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oblanceolate
narrowly to broadly
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sometimes; only more or less; more or less
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rugose
more or less to strongly
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