Potentilla jepsonii Ertter (Q3975)
Potentilla jepsonii is a taxon with the rank species within the section Potentilla sect. Pensylvanicae
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Potentilla jepsonii Ertter
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Potentilla jepsonii is a taxon with the rank species within the section Potentilla sect. Pensylvanicae
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Statements
taxon/id/Potentilla jepsonii Ertter
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Potentilla jepsonii Ertter
Potentilla jepsonii
Ertter
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-AB
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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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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-MT
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US-NV
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US-OR
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US-UT
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US-WA
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2500–3700 m
2,500 meter
3,700 meter
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Stems decumbent to nearly erect, (0.2–) 0.5–2.6 dm.
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Basal leaves subpinnate to subpalmate, 1.5–10 (–17) cm;
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petiole 0.5–4 (–8) cm, long hairs ± abundant, spreading to loosely appressed, 0.5–2 mm, weak to stiff, short hairs absent or sparse, cottony or crisped hairs absent, glands sparse to abundant;
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leaflets (1–) 2–3 per side, on distal 1/6–1/3 (–1/2) of leaf axis, separate to slightly overlapping, terminal ones oblanceolate-elliptic to narrowly obovate, (0.5–) 1–2.5 (–3.5) × 0.4–1 (–1.3) cm, margins strongly revolute, incised 3/4+ to midvein, undivided medial blade 1.5–3 (–5) mm wide, teeth (2–) 3–5 (–6) per side, ± linear-elliptic to rarely ovate or oblanceolate, surfaces ± dissimilar, abaxial ± grayish, rarely white, long hairs ± abundant especially on veins, 1 mm, weak, short hairs absent or sparse, cottony hairs absent, crisped hairs sparse to abundant, glands ± abundant, sometimes obscured, adaxial green to gray-green, long hairs sparse to abundant, loosely appressed, 0.5–1 (–2) mm, short hairs absent or sparse, cottony and crisped hairs absent, glands ± abundant.
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Cauline leaves 1–2.
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Inflorescences (1–) 3–12 (–20) -flowered, congested, scarcely opening in fruit.
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Pedicels 0.2–0.5 cm (proximal to 1.2 cm).
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Flowers: epicalyx bractlets elliptic to linear, 1.5–3 × (0.3–) 0.5–1.2 mm, lengths 1/2–3/4 times sepals, margins flat;
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hypanthium 2.5–5 mm diam.;
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sepals 2–5 mm, apex usually ± acute to obtuse, rarely acuminate, abaxial surfaces: venation faint, glands abundant, evident;
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petals pale-yellow, 2–5 × 2–4 mm, lengths ± equal to sepals;
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filaments 0.5–2 mm, anthers 0.3–0.7 mm;
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carpels 20–60, styles papillate-swollen in proximal 1/2–3/4+, 0.8–1.2 mm.
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Achenes 1 mm, smooth to faintly rugose.
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separate
slightly overlapping
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oblanceolate-elliptic
narrowly obovate
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