Potentilla arenosa (Turczaninow) Juzepczuk in V. L. Komarov et al. (Q4018)

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Potentilla arenosa is a taxon with the rank species within the section Potentilla sect. Niveae
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English
Potentilla arenosa (Turczaninow) Juzepczuk in V. L. Komarov et al.
Potentilla arenosa is a taxon with the rank species within the section Potentilla sect. Niveae

    Statements

    taxon/id/Potentilla arenosa (Turczaninow) Juzepczuk
    0 references
    Potentilla arenosa (Turczaninow) Juzepczuk
    Potentilla arenosa
    (Turczaninow) Juzepczuk
    accepted
    bluff cinquefoil (English)
    potentille des escarpements (French)
    Plants scarcely to ± tufted.
    Caudex branches thick, not columnar, not sheathed with marcescent whole leaves.
    Stems ascending to erect, (0.3–) 0.8–2.5 (–4.5) dm, lengths (2–) 3–5 times basal leaves.
    Basal leaves 1.5–12 (–20) cm;
    petiole 1–7 (–15) cm, long hairs sparse to abundant, spreading to ± ascending, rarely loosely appressed, 1–2 (–2.5) mm, usually stiff, sometimes weak (subsp. chamissonis), verrucose, short and/or crisped hairs absent or sparse to abundant, cottony hairs absent, glands absent or sparse;
    leaflets separate to ± overlapping, central obovate, 1–3.5 (–4.5) × 0.5–2 (–3) cm, usually petiolulate, petiolule to 5 mm, base cuneate, margins slightly revolute, distal ± 3/4 incised ± 1/2 to midvein, teeth (2–) 3–4 (–6) per side, ± approximate to distant, surfaces dissimilar, often strongly so, abaxial white to gray, long hairs 0.5–1.8 mm, cottony-crisped hairs ± dense, adaxial green, sometimes grayish green, long hairs sparse to abundant, short-crisped hairs sparse to abundant.
    Cauline leaves (0–) 1–2.
    Inflorescence 1–7 (–15) -flowered.
    Pedicels 1.5–5 cm in flower, to 6 (–10) cm in fruit.
    Flowers: epicalyx bractlets linear-lanceolate to lanceolate-elliptic, 2–5 (–7) × 0.4–1.2 (–1.5) mm, 1/4–1/2 as wide as sepals, margins usually flat, red-glands absent or sparse and inconspicuous;
    hypanthium 3–5 mm diam.;
    sepals 3–6 (–8) mm, apex acute;
    petals 4–7 (–10) × 4–7 (–9) mm, ± longer than sepals;
    filaments 0.8–1 mm, anthers 0.4 mm;
    carpels 28–40, apical hairs absent, styles conic-columnar, strongly papillate-swollen in proximal 1/5–1/3, 1–1.5 mm.