Potentilla jepsonii Ertter (Q3975)

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Potentilla jepsonii is a taxon with the rank species within the section Potentilla sect. Pensylvanicae
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English
Potentilla jepsonii Ertter
Potentilla jepsonii is a taxon with the rank species within the section Potentilla sect. Pensylvanicae

    Statements

    taxon/id/Potentilla jepsonii Ertter
    0 references
    Potentilla jepsonii Ertter
    Potentilla jepsonii
    FNA Editorial Committee. 2014. Flora of North America north of Mexico. Volume 9: Magnoliophyta: Picramniaceae to Rosaceae. Oxford University Press, New York.
    accepted
    potentille de Jepson (French)
    Jepson's cinquefoil (English)
    Jepson's potentilla (English)
    Jepson’s potentilla (English)
    Flowering summer.
    moist sites
    alpine meadows
    ridges
    fellfields
    rock ledges
    talus slopes
    2500–3700 m
    Stems decumbent to nearly erect, (0.2–) 0.5–2.6 dm.
    Basal leaves subpinnate to subpalmate, 1.5–10 (–17) cm;
    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;
    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.
    Cauline leaves 1–2.
    Inflorescences (1–) 3–12 (–20) -flowered, congested, scarcely opening in fruit.
    Pedicels 0.2–0.5 cm (proximal to 1.2 cm).
    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;
    hypanthium 2.5–5 mm diam.;
    sepals 2–5 mm, apex usually ± acute to obtuse, rarely acuminate, abaxial surfaces: venation faint, glands abundant, evident;
    petals pale-yellow, 2–5 × 2–4 mm, lengths ± equal to sepals;
    filaments 0.5–2 mm, anthers 0.3–0.7 mm;
    carpels 20–60, styles papillate-swollen in proximal 1/2–3/4+, 0.8–1.2 mm.
    Achenes 1 mm, smooth to faintly rugose.