Crataegus margarettae Ashe (Q4259)
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Crataegus margarettae is a taxon with the rank species within the series Crataegus ser. Rotundifoliae
| Language | Label | Description | Also known as |
|---|---|---|---|
| English |
Crataegus margarettae Ashe
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Crataegus margarettae is a taxon with the rank species within the series Crataegus ser. Rotundifoliae
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Statements
taxon/id/Crataegus margarettae Ashe
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Crataegus margarettae Ashe
Crataegus margarettae
Ashe
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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US-IL
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US-IN
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US-IA
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US-KY
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US-MI
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US-MO
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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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US-WI
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thorns on twigs few to numerous, straight to recurved, 1-year old blackish, ± shiny, slender, 2.5–5 cm.
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Leaves: petiole length 30–60% blade, glabrous, usually with small glands at first, becoming eglandular, glands ± caducous, small;
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blade green to bluish green, suborbiculate, ovate, or obovate, rarely elliptic-rhombic to elliptic or lance-elliptic, 3–5 cm (less than 2.5 in var. meiophylla), subcoriaceous, base cuneate to broadly cuneate, lobes 1–3 (or 4) per side, sinuses usually shallow, sometimes deep, lobe apex obtuse to angled, margins crenate to finely, sharply serrate, veins 3 or 4 per side, apex subacute to obtuse, abaxial surface glabrous, adaxial ± sparsely appressed-short-pubescent young, glabrescent.
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Inflorescences 6–15-flowered;
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branches glabrous, rarely pubescent;
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bracteoles late caducous, linear, subherbaceous, margins glandular.
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Flowers (8–) 12–17 mm diam.;
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hypanthium glabrous;
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sepals narrowly triangular, 4–5 mm, margins entire or subentire, glandular, abaxially glabrous;
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stamens 20, anthers ivory;
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styles 2 or 3 (or 4).
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Pomes yellow, orange-red, red, or dull burgundy, broadly ellipsoid to suborbicular, 7–12 mm diam., glabrous;
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sepals reflexed, often on collar;
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pyrenes 2–4.2n = 34.
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broadly ellipsoid
suborbicular
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