Potentilla crebridens subsp. hemicryophila Jurtzev in A. I. Tolmatchew (Q4022)

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Potentilla crebridens subsp. hemicryophila is a taxon with the rank subspecies within the species Potentilla crebridens
Language Label Description Also known as
English
Potentilla crebridens subsp. hemicryophila Jurtzev in A. I. Tolmatchew
Potentilla crebridens subsp. hemicryophila is a taxon with the rank subspecies within the species Potentilla crebridens

    Statements

    taxon/id/Potentilla crebridens subsp. hemicryophila Jurtzev
    0 references
    Potentilla crebridens subsp. hemicryophila Jurtzev
    Potentilla crebridens subsp. hemicryophila
    Jurtzev
    FNA Editorial Committee. 2014. Flora of North America north of Mexico. Volume 9: Magnoliophyta: Picramniaceae to Rosaceae. Oxford University Press, New York.
    accepted
    Potentilla crebridens subsp. hemicryophila
    potentille de Béringie (French)
    Beringian cinquefoil (English)
    1 reference
    Bennett, B., P.M. Catling, W.J. Cody & G.W. Argus. 2010. New records of vascular plants in the Yukon Territory VIII. Canadian Field Naturalist 124 (1): 1-27. http://canadianfieldnaturalist.ca/index.php/cfn/article/view/1025
    Asia (Russian Far East)
    Asia (Siberia)
    Flowering summer.
    dry alpine ridges
    meadows
    well-drained slopes
    rocky outcrops
    calcareous bedrock
    Caudex branches slender to stout, not columnar, not sheathed with marcescent whole leaves.
    Stems ascending to erect, 0.8–2 dm, lengths 2–3 (–4) times basal leaves.
    Basal leaves 3–8 cm;
    petiole 0.5–5 cm, cottony hairs usually dense, sometimes sparse, other hair types and glands absent or obscured;
    leaflets ± overlapping, central obovate, 0.6–2 × 0.5–1.2 cm, subsessile, base cuneate, margins slightly revolute, distal 3/4 to nearly whole length incised 1/4–1/3 (–1/2) to midvein, teeth (3–) 5–8 (–12) per side, approximate, surfaces ± to strongly dissimilar, abaxial ± white, long hairs 0.7–1.2 mm, cottony-crisped hairs usually dense, adaxial green to grayish green, long hairs sparse to abundant, short and/or crisped hairs sparse to abundant.
    Cauline leaves 0–1.
    Inflorescences 1–6-flowered.
    Pedicels 1–1.5 cm in flower, to 3 cm in fruit.
    Flowers: epicalyx bractlets linear, 3–5 × 0.2–0.6 mm, usually less than 1/4 as wide as sepals, margins flat, red-glands absent;
    hypanthium 4–4.5 mm diam.;
    sepals 5–6 mm, apex acute;
    petals 5–7 × 5–8 mm, slightly longer than sepals;
    filaments 1 mm, anthers 0.4 mm;
    carpels 25–30, apical hairs absent, styles columnar, not or ± papillate-swollen on less than proximal 1/5, 0.9–1.1 mm.
    Achenes 1.1 mm. 2n = 28 (Russian Far East).