Potentilla plattensis Nuttall in J. Torrey and A. Gray (Q4026)
Potentilla plattensis is a taxon with the rank species within the section Potentilla sect. Multijugae
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Potentilla plattensis Nuttall in J. Torrey and A. Gray
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Potentilla plattensis is a taxon with the rank species within the section Potentilla sect. Multijugae
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Statements
taxon/id/Potentilla plattensis Nuttall
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Potentilla plattensis Nuttall
Potentilla plattensis
Nuttall
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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potentille de la rivière Platte (French)
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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-MB
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Manitoba Checklist, 2002
CA-NS
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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-AB
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CA-MB
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CA-NT
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CA-SK
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US-AZ
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US-CO
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US-ID
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US-MT
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US-NM
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US-ND
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US-SD
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US-UT
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US-WY
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300–2900 m
300 meter
2,900 meter
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Plants rosetted to tufted;
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taproots fleshy-thickened.
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Stems initially decumbent to sometimes ascending, becoming prostrate or supported by vegetation, (0.3–) 0.5–3.5 (–4.5) dm, lengths 1.5–2.5 (–4) times basal leaves.
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Basal leaves pinnate with distal leaflets ± distinct, 2–15 (–20) × 1–3 cm;
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petiole 0.5–5 cm, straight hairs common, tightly appressed, 0.5 (–1) mm, stiff, cottony hairs absent, glands absent or sparse;
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primary lateral leaflets (3–) 4–6 (–8) per side, on distal (1/4–) 1/2–3/4 of leaf axis, overlapping to separate, largest ones obovate, 0.5–1.5 (–2) × 0.5–1 (–1.3) cm, distal (1/2–) 2/3 to whole margin pinnately incised 3/4+ to midvein, ultimate teeth 5–10, linear-oblanceolate, 1.5–8 (–10) × 1–2 mm, apical tufts less than 0.5 mm, surfaces green to grayish green, not glaucous, straight hairs sparse to common (sparser adaxially), tightly appressed, 0.5 mm, stiff, cottony hairs absent, glands absent or inconspicuous.
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Cauline leaves 1–3.
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Inflorescences (1–) 3–15 (–20) -flowered, loosely cymose, sometimes racemiform.
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Pedicels 1–4 (–5) cm, ± recurved in fruit.
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Flowers: epicalyx bractlets narrowly elliptic to linear-lanceolate, 2–5 (–6) × 0.5–2 mm;
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hypanthium 3–4 mm diam.;
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sepals 3–6 mm, apex acute;
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petals 4–7 × 3–6 mm;
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filaments 1–2.5 mm, anthers 0.5–1 mm, usually ± 1/2 as long as filaments;
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carpels 10–20, styles 1.5–2.5 mm.
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decumbent to sometimes
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supported by vegetation , (0.3-)0.5-3.5(-4.5) dm
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1.5-2.5(-4) times basal leaves
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narrowly elliptic
linear-lanceolate
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usually more or less; more or less
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