Crataegus sheridana A. Nelson (Q4353)
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
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Crataegus sheridana is a taxon with the rank species within the series Crataegus ser. Macracanthae
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Statements
taxon/id/Crataegus sheridana A. Nelson
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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
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CA-AB
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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
CA-SK
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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
CA-AB
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CA-SK
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US-MN
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US-MT
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US-ND
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US-SD
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US-WY
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300–1200 m
300 meter
1,200 meter
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thorns on twigs usually numerous, usually recurved, 2-years old very dark, shiny redbrown, slender to moderately thick, (2.5–) 3–5 (–7) cm.
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Leaves: petiole length 40–50% blade, pubescent (especially in adaxial sulcus), ± densely sessile-glandular;
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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).
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Inflorescences 5–15-flowered;
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branches ± densely pubescent;
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bracteoles pallid, narrow, margins sessile-glandular.
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Flowers 14–16 mm diam.;
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hypanthium proximally ± tomentose, medially densely short-pubescent;
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sepals greenish, triangular, length not recorded, margins glandular-serrate, abaxially glabrous, adaxially pubescent;
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stamens 10, anthers ivory;
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Pomes 1–6 in infructescences, bright red, broadly ellipsoid to suborbicular, 9–11 mm tall, pubescent, rarely glabrate;
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sepals ± spreading to reflexed;
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pyrenes 3 or 4, sides ± roughened with shallow, irregular pitting or diagonal scarring.
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sessile-glandular
more or less densely
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sometimes more or less
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broadly ellipsoid
suborbicular
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