Crataegus sheridana A. Nelson (Q4353)

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Crataegus sheridana is a taxon with the rank species within the series Crataegus ser. Macracanthae
Language Label Description Also known as
English
Crataegus sheridana A. Nelson
Crataegus sheridana is a taxon with the rank species within the series Crataegus ser. Macracanthae

    Statements

    taxon/id/Crataegus sheridana A. Nelson
    0 references
    Crataegus sheridana A. Nelson
    Crataegus sheridana
    A. Nelson
    FNA Editorial Committee. 2014. Flora of North America north of Mexico. Volume 9: Magnoliophyta: Picramniaceae to Rosaceae. Oxford University Press, New York.
    accepted
    aubépine de Sheridan (French)
    Great Plains hawthorn (English)
    Great Plains hawthorn (English)
    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
    Flowering May–Jun; fruiting Sep.
    Shrubs, 20–35 dm.
    thorns on twigs usually numerous, usually recurved, 2-years old very dark, shiny redbrown, slender to moderately thick, (2.5–) 3–5 (–7) cm.
    Leaves: petiole length 40–50% blade, pubescent (especially in adaxial sulcus), ± densely sessile-glandular;
    blade sometimes broadly ovate or suborbiculate, sometimes ± ovate, elliptic-ovate to ovate, 3.5–5 (–6) cm, nearly full grown at flowering, ± thin, base cuneate, broadly cuneate, or subtruncate to subcordate, lobes (3 or) 4 (or 5) per side, sinuses shallow, LII 5–15%, lobe apex acute (except where blades elliptic-ovate to ovate, then lobes deeper, LII 15–30%, lobe apex subacute), margins with subacute teeth, veins 3 or 4 per side, apex acute to obtuse, abaxial surface glabrous, veins glabrous or pubescent young, adaxial densely appressed-scabrous-pubescent young (variably persistent).
    Inflorescences 5–15-flowered;
    branches ± densely pubescent;
    bracteoles pallid, narrow, margins sessile-glandular.
    Flowers 14–16 mm diam.;
    hypanthium proximally ± tomentose, medially densely short-pubescent;
    sepals greenish, triangular, length not recorded, margins glandular-serrate, abaxially glabrous, adaxially pubescent;
    stamens 10, anthers ivory;
    Pomes 1–6 in infructescences, bright red, broadly ellipsoid to suborbicular, 9–11 mm tall, pubescent, rarely glabrate;
    sepals ± spreading to reflexed;
    pyrenes 3 or 4, sides ± roughened with shallow, irregular pitting or diagonal scarring.