Potentilla lasiodonta Rydberg in N. L. Britton et al. (Q3971)

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Potentilla lasiodonta is a taxon with the rank species within the section Potentilla sect. Pensylvanicae
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English
Potentilla lasiodonta Rydberg in N. L. Britton et al.
Potentilla lasiodonta is a taxon with the rank species within the section Potentilla sect. Pensylvanicae

    Statements

    taxon/id/Potentilla lasiodonta Rydberg
    0 references
    Potentilla lasiodonta Rydberg
    Potentilla lasiodonta
    Rydberg
    FNA Editorial Committee. 2014. Flora of North America north of Mexico. Volume 9: Magnoliophyta: Picramniaceae to Rosaceae. Oxford University Press, New York.
    accepted
    Potentilla lasiodonta
    potentille à feuilles de tanaisie (French)
    sandhills cinquefoil (English)
    Sandhills cinquefoil (English)
    1 reference
    Moss, E.H. 1983. Flora of Alberta. 2nd edition, revised by J.G. Packer. University of Toronto Press, Toronto. 687 pp.
    1 reference
    FNA Editorial Committee. 2014. Flora of North America north of Mexico. Volume 9: Magnoliophyta: Picramniaceae to Rosaceae. Oxford University Press, New York. http://www.efloras.org/volume_page.aspx?volume_id=1009&flora_id=1
    1 reference
    FNA Editorial Committee. 2014. Flora of North America north of Mexico. Volume 9: Magnoliophyta: Picramniaceae to Rosaceae. Oxford University Press, New York. http://www.efloras.org/volume_page.aspx?volume_id=1009&flora_id=1
    1 reference
    Harms, V.L. 2006. Annotated catalogue of Saskatchewan vascular plants. http://www.biodiversity.sk.ca/Docs/AnnotatedCatalogueSKVascPlants2006.pdf
    Flowering summer.
    Stems ± erect, 2–4 dm.
    Basal leaves pinnate, 12–20 (–30) cm;
    petiole 5–10 (–15) cm, long hairs ± abundant, spreading to ascending, 0.5–1 mm, weak to ± stiff, short hairs abundant to dense, cottony or crisped hairs absent, glands sparse to abundant, often obscured;
    leaflets 4–6 (–9) per side, on distal (1/3–) 1/2–3/5 of leaf axis, slightly overlapping, terminal ones oblanceolate to narrowly elliptic, 3–6 × 0.8–1.2 (–1.5) cm, margins strongly revolute, incised ± 1/2 to midvein, undivided medial blade 5–9 mm wide, teeth 8–12 per side, narrowly triangular to lanceolate, surfaces ± dissimilar, abaxial grayish, long hairs ± sparse (or not differentiated from short hairs), 0.5–1.5 mm, weak, short hairs abundant to dense, cottony or crisped hairs absent, glands sparse or obscured, adaxial ± green, straight hairs (long and short not differentiated) abundant, spreading to ascending, 0.2–0.5 mm, cottony and crisped hairs absent, glands sparse to abundant, often obscured.
    Cauline leaves (1–) 2–4.
    Inflorescences 10–40-flowered, congested or elongating in fruit.
    Pedicels ± 0.1 cm (proximal to 1.2 cm).
    Flowers: epicalyx bractlets narrowly ovate-acuminate, (3–) 4–8 (–10) × 2–3 mm, lengths 1–2 times sepals, margins ± revolute;
    hypanthium (4–) 5–10 mm diam.;
    sepals 3–5 mm, apex acute to obtuse, abaxial surfaces: venation moderate, glands ± abundant, obscured to evident;
    petals pale-yellow, 3–5 × 2–4 mm, lengths ± equal to or shorter than sepals;
    filaments 1–1.5 mm, anthers 0.5–0.8 mm;
    carpels 80–90, styles papillate-swollen in proximal 3/4+, 1–1.2 mm.