Crataegus compacta Sargent (Q4307)
Crataegus compacta is a taxon with the rank species within the series Crataegus ser. Pruinosae
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| English |
Crataegus compacta Sargent
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Crataegus compacta is a taxon with the rank species within the series Crataegus ser. Pruinosae
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Statements
taxon/id/Crataegus compacta Sargent
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Crataegus compacta Sargent
Crataegus compacta
Sargent
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-ON
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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.
CA-ON
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US-MI
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US-NY
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US-OH
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US-PA
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US-VA
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US-WV
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100–300 m
100 meter
300 meter
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Shrubs, erect, 60 dm.
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thorns on twigs ± numerous, ± straight to slightly recurved, 2-years old shiny blackish, medium thickness, 1.5–3 cm.
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Leaves: petiole length 50–75% blade, sparsely glandular;
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blade trullate to rhombic-ovate, 3–5 cm, thin, base cuneate, lobes 2 or 3 per side, sinuses shallow, lobe apex subacute, margins serrate, teeth 1 mm, veins 4 or 5 per side, apex acute, surfaces glabrous, sometimes adaxial sparsely hairy young.
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Inflorescences 4–7-flowered;
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branches glabrous, sparsely punctate;
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bracteoles sometimes greenish, large, margins short-stipitate-glandular.
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Flowers 15–18 mm diam.;
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sepals narrowly triangular, 4–5 mm, margins subentire, abaxial pubescence not recorded;
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stamens 20, anthers pink to red, 0.3 mm;
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Pomes usually borne singly, greenish to pinkish or pale-purple, or dull reddish purple, 8–11 mm diam., moderately pruinose (sometimes bracteolate);
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sepals on collar, spreading, sometimes erose;
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pyrenes 2 or 3.2n = 34, 51, 68.
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greenish
pinkish or pale-purple or dull reddish purple
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greenish
pinkish or pale-purple or dull reddish purple
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