Crataegus gaylussacia A. Heller (Q4368)
Crataegus gaylussacia is a taxon with the rank species within the series Crataegus ser. Douglasianae
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| English |
Crataegus gaylussacia A. Heller
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Crataegus gaylussacia is a taxon with the rank species within the series Crataegus ser. Douglasianae
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Statements
taxon/id/Crataegus gaylussacia A. Heller
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Crataegus gaylussacia A. Heller
Crataegus gaylussacia
A. Heller
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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aubépine à fruits de gaylussaquier (French)
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CA-BC
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Douglas, G.W., G.B. Straley, D.V. Meidinger & J. Pojar. 1998. Illustrated Flora of British Columbia. B.C. Ministry of Environment, Lands & Parks and B.C. Ministry of Forests. Victoria. Crown Publications. 8 vols.
CA-BC
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US-AK
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US-CA
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US-ID
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US-MT
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US-OR
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US-WA
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10–400 m
10 meter
400 meter
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Shrubs, 30–100 dm.
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Stems: 1-year old twigs tan, older grayish;
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thorns on twigs recurved or straight, dark-brown young, 1–2 (–2.5) cm.
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Leaves: petiole 0.7–1.5 cm, glabrous, eglandular, sometimes glandular (Montana);
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blade ± rhombic-elliptic to elliptic-obovate or broadly ovate, 3–8 cm, lobes 0, or 2 or 3 per side, lobe apex acute to obtuse, margins serrate, teeth glandular in Montana, venation ± semicamptodromous, veins 3 or 4 per side, apex obtuse, abaxial surface ± glabrate, adaxial appressed-pubescent, hairy near veins in Oregon.
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Inflorescences 7–15-flowered;
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branches punctate, glabrous, sometimes densely pubescent (coastal Washington);
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bracteole margins stipitate or sessile-glandular.
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Flowers 15–17 mm diam.;
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hypanthium glabrous;
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sepals triangular, 4 mm, margins minutely and sparsely glandular-serrate, glabrous;
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stamens 20, anthers pink;
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Pomes dull vinous purple becoming black mature, suborbicular to broadly ovoid, 8–10 mm diam., glabrous;
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sepals reflexed, apex obtuse;
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pyrenes 4 or 5, sides eroded.
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less rhombic-elliptic
elliptic-obovate or broadly ovate
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