Potentilla macounii Rydberg (Q3978)

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Potentilla macounii is a taxon with the rank species within the section Potentilla sect. Concinnae
Language Label Description Also known as
English
Potentilla macounii Rydberg
Potentilla macounii is a taxon with the rank species within the section Potentilla sect. Concinnae

    Statements

    taxon/id/Potentilla macounii Rydberg
    0 references
    Potentilla macounii Rydberg
    Potentilla macounii
    Rydberg
    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 Macoun (French)
    Macoun's cinquefoil (English)
    Macoun’s cinquefoil (English)
    Flowering early summer.
    rocky slopes
    outcrops
    gravel banks
    prairies
    1200–2200 m
    Stems 0.4–1.5 (–2) dm, lengths 2 times basal leaves.
    Basal leaves subpinnate to pinnate, usually at least 2 pairs of leaflets separate from terminal leaflets, distal leaflets often confluent, 2–7 cm;
    petiole 1–4 (–8) cm, straight hairs abundant, ± appressed to ascending, 1–2 mm, stiff to weak, cottony hairs sometimes present, glands absent or obscured;
    leaflets 5–9 (–11), on distal 1/5–1/2 of leaf axis, strongly overlapping, proximal pair separate from others by 1–5 mm of leaf axis, central leaflets oblanceolate to obovate, sometimes lobed, (0.5–) 1–1.5 × 0.5–1 cm, petiolules 0–1 mm, distal 2/3 of margins incised 1/2+ to midvein, teeth 2–5 per side, touching, 1–3 mm, surfaces ± dissimilar, abaxial white, straight hairs ± abundant, ± appressed, 1–1.5 mm, weak to stiff, cottony hairs ± dense, glands absent or obscured, adaxial greenish gray, straight hairs sparse to abundant, usually appressed, sometimes ascending, 1 mm, usually ± stiff, sometimes soft, cottony hairs sparse, glands obscured.
    Inflorescences (1–) 3–6 (–10) -flowered.
    Pedicels 0.8–2 cm.
    Flowers: epicalyx bractlets lanceolate to ovate-elliptic, 2.5–4 × 0.8–1.5 mm;
    hypanthium 3–4 mm diam.;
    sepals (3–) 3.5–5.5 (–6) mm, apex ± acute;
    petals 6–7 × 5–7 mm;
    filaments 1.5–3 mm, anthers 0.8–1 mm;
    carpels 15–20, styles 2–2.5 mm.
    Achenes 1.5–2 mm, smooth.