Potentilla supina subsp. paradoxa (Nuttall) Soják (Q3966)

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Potentilla supina subsp. paradoxa is a taxon with the rank subspecies within the species Potentilla supina
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English
Potentilla supina subsp. paradoxa (Nuttall) Soják
Potentilla supina subsp. paradoxa is a taxon with the rank subspecies within the species Potentilla supina

    Statements

    taxon/id/Potentilla supina subsp. paradoxa (Nuttall) Soják
    0 references
    Potentilla supina subsp. paradoxa (Nuttall) Soják
    Potentilla supina subsp. paradoxa
    (Nuttall) Soják
    FNA Editorial Committee. 2014. Flora of North America north of Mexico. Volume 9: Magnoliophyta: Picramniaceae to Rosaceae. Oxford University Press, New York.
    accepted
    Potentilla supina subsp. paradoxa
    potentille étrange (French)
    bushy cinquefoil (English)
    paradox cinquefoil (English)
    sand cinquefoil (English)
    Bushy 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
    Douglas, G.W., G.B. Straley, D.V. Meidinger & J. Pojar. 1998. Illustrated Flora of British Columbia. B.C. Ministry of Environment, Lands & Parks and B.C. Ministry of Forests. Victoria. Crown Publications. 8 vols.
    1 reference
    Newmaster, S.G., A. Lehela, M.J. Oldham, P.W.C. Uhlig & S. McMurray. 1998. Ontario Plant List. Ontario Forest Research Institute, Sault Ste. Marie, Ontario. Forest Information Paper No. 123. 550 pp.
    1 reference
    Harms, V.L. 2006. Annotated catalogue of Saskatchewan vascular plants. http://www.biodiversity.sk.ca/Docs/AnnotatedCatalogueSKVascPlants2006.pdf
    n Mexico
    Eurasia
    Flowering late spring–summer.
    sandy shorelines
    reservoirs
    streams
    Stems prostrate to ascending, sometimes erect, (1–) 2–4 (–6) dm, hairs at base not particularly stiff, not tubercle-based, glands absent or sparse, inconspicuous.
    Leaves pinnate (with distal leaflets ± confluent), 5–12 (–15) cm;
    petiole 1–6 (–8) cm, long hairs sparse to common, ± ascending, sometimes erect or appressed, 0.5–1 (–1.5) mm, usually ± weak, crisped hairs absent or sparse to common, glands sparse to common, inconspicuous;
    leaflets 5–9, on distal (1/4–) 1/2–2/3 of leaf axis, ± separate, largest ones oblanceolate to elliptic or obovate, 1–2 (–4) × 0.6–1.2 (–2.5) cm, distal 2/3 to ± whole margin ± evenly incised 1/4–1/2 to midvein, teeth (2–) 4–6 per side, surfaces glabrate or sparsely hairy, glands mostly absent.
    Inflorescences (10–) 20–100+-flowered.
    Pedicels 0.5–2 (–2.5) cm.
    Flowers: epicalyx bractlets ± elliptic to narrowly ovate, 3–5 (–7) × 1–2 (–3) mm;
    hypanthium 3–5 mm diam.;
    sepals 3–5 (–6) mm, apex acute to apiculate;
    petals yellow, obovate, 2.5–5 × 2–4.5 mm;
    stamens 20 (–25), filaments 0.7–1.8 (–2) mm, anthers 0.3–0.5 mm;
    carpels ca. 100, styles 0.5–0.6 mm.
    Achenes brown, 0.7–1.3 mm, usually strongly rugose, developing a smooth, corky protuberance on ventral suture, often as large as body of achene.