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
Language Label Description Also known as
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.