Potentilla gracilis Douglas ex Hooker (Q3989)

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Potentilla gracilis is a taxon with the rank species within the section Potentilla sect. Graciles
Language Label Description Also known as
English
Potentilla gracilis Douglas ex Hooker
Potentilla gracilis is a taxon with the rank species within the section Potentilla sect. Graciles

    Statements

    taxon/id/Potentilla gracilis Douglas ex Hooker
    0 references
    Potentilla gracilis Douglas ex Hooker
    Potentilla gracilis
    Douglas ex Hooker
    FNA Editorial Committee. 2014. Flora of North America north of Mexico. Volume 9: Magnoliophyta: Picramniaceae to Rosaceae. Oxford University Press, New York.
    accepted
    graceful cinquefoil (English)
    slender cinquefoil (English)
    potentille grĂȘle (French)
    Slender cinquefoil (English)
    potentille grĂȘle (English)
    Glands usually absent or inconspicuous, uncolored.
    Stems ascending to erect, (0.5–) 2–7 (–12) dm.
    Basal leaves usually not in ranks, palmate, rarely subpalmate, 4–40 (–55) cm;
    petiole (2–) 3–25 (–45) cm, long hairs sparse to dense, appressed to spreading, 0.5–2 (–3) mm, weak to stiff, short hairs absent, crisped hairs usually absent, cottony hairs absent or sparse to abundant (var. owyheensis), glands absent or sparse;
    leaflets 5–9, on tip, rarely less than distal 1/10, of leaf axis, separate to overlapping, largest ones oblanceolate to elliptic or obovate, (1.5–) 2–9 (–11) × (0.7–) 1.5–4 cm, margins flat to revolute, distal (2/3–) 3/4 to nearly whole length evenly to unevenly incised 1/4–3/4+ to midvein, undivided medial blade 2–20 mm wide, teeth (4–) 6–10 (–11) per side (sometimes secondarily toothed), linear to broadly lanceolate, 2–20 (–35) mm, surfaces ± similar to strongly dissimilar, abaxial green or pale green to white, usually not glaucous, long hairs sparse to abundant (sometimes mostly on veins), short-crisped hairs absent or sparse to abundant, cottony hairs absent or sparse to dense, glands usually absent or obscured to sparse, sometimes common, adaxial dark green to grayish, long hairs sparse to ± abundant, rarely absent or dense, short-crisped hairs absent or sparse, cottony hairs absent or sparse to abundant (var. owyheensis), glands usually absent or sparse to sometimes common.
    Cauline leaves 1–4 (–5).
    Inflorescences (4–) 10–50 (–60) -flowered.
    Pedicels 0.3–3 cm.
    Flowers: epicalyx bractlets linear to narrowly lanceolate or elliptic, 2–6 (–8) × 0.5–1.5 (–2.5) mm, hairs sparse to abundant, rarely dense, ± appressed to ascending, rarely spreading, glands usually absent or inconspicuous;
    hypanthium 3.5–6 mm diam.;
    sepals 4–8 (–10) mm, apex acute to long acuminate;
    petals (3–) 4–10 (–11) × (3–) 4–10 (–12) mm;
    filaments (1–) 1.5–2.5 (–3.5) mm, anthers 0.6–1.2 (–1.6) mm;
    carpels (15–) 20–50, styles ± tapered, papillate-swollen proximally, (1–) 1.5–2.5 (–3) mm.
    Achenes 1–1.8 mm.