Crataegus calpodendron (Ehrhart) Medikus (Q4346)
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Crataegus calpodendron is a taxon with the rank species within the series Crataegus ser. Macracanthae
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| English |
Crataegus calpodendron (Ehrhart) Medikus
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Crataegus calpodendron is a taxon with the rank species within the series Crataegus ser. Macracanthae
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Statements
taxon/id/Crataegus calpodendron (Ehrhart) Medikus
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Crataegus calpodendron (Ehrhart) Medikus
Crataegus calpodendron
(Ehrhart) Medikus
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-AL
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US-AR
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US-GA
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US-IL
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US-IN
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US-IA
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US-KS
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US-KY
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US-MD
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US-MI
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US-MN
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US-MS
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US-MO
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US-NE
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US-NY
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US-OH
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US-OK
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US-PA
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US-TN
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US-VA
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US-WV
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US-WI
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10–800 m
10 meter
800 meter
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Shrubs or trees, usually multistemmed, 50–70 dm.
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thorns on twigs absent or numerous, recurved (if longer), 1-year old shiny, dark-brown, older turning gray, slender, 2.5–6 cm.
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Leaves: petiole length 25–30% blade, narrowly winged most of length, finely pubescent, eglandular;
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blade ± rhombic or rhombic-narrowly ovate, sometimes suborbiculate, 3–12 cm, thin, base cuneate, lobes 0 or 5–8 per side, sinuses shallow, lobe apex subacute to acute, margins serrate except in proximal 1/4, veins 8 per side, apex usually acute, abaxial surface persistently appressed-pubescent, especially on veins, adaxial scabrate young, glabrous mature.
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Inflorescences 12–25-flowered;
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branches densely appressed-pubescent;
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bracteoles linear, margins stipitate-glandular.
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Flowers 13–15 (–22) mm diam.;
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hypanthium pubescent;
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sepals narrowly triangular, length not recorded, margins nearly entire or shallowly glandular-serrate, abaxially pubescent, adaxial pubescence not recorded;
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stamens 20, anthers usually red, pink, or purple, sometimes white, small;
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Pomes orange-red to scarlet, ellipsoid to sometimes orbicular, (5–) 7–9 (–10) mm diam., pubescent;
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sepals reflexed or spreading;
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pyrenes 2 or 3, sides pitted.
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ellipsoid to sometimes
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