Crataegus pruinosa |
Crataegus dodgei |
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frosted hawthorn, waxyfruit hawthorn |
Dodge hawthorn, Dodge's hawthorn |
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Habit | Shrubs or trees, dense, often suberect, 20–70 dm. | Shrubs or trees, 50 dm. | ||||||||||||||||||||
Stems | compound thorns on trunks present; twigs: new growth reddish brown, 1-year old dull purple-brown, 2-years old dull gray, older paler; thorns on twigs straight to slightly recurved, 2-years old deep purple to shiny black, usually ± fine, 3–5 cm. |
twigs: new growth often ± reddish young, glabrous, 1-year old gray-brown, older dull gray; thorns on twigs few to plentiful, straight to ± recurved, 1-year old shiny, dark brown or black, older gray, slender, 2.5–7 cm. |
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Leaves | petiole length 50–66% blade, sparsely glandular; blade trullate to ovate, ovate-oblong, or broadly rhombic, rarely ± deltate, 2–6(–7) cm, subcoriaceous, base broadly cuneate to subtruncate to weakly subcordate, lobes (1–)3 or 4 per side, sinuses shallow to deeper, lobe apex acute, sometimes ± obtuse, margins serrate, veins 5 or 6 per side (except smaller leaves), apex acute, surfaces glabrous (except var. virella). |
petiole length 40–60% blade, glabrous, sparsely to densely minutely glandular; blade green, suborbiculate, ± ovate, broadly rhombic to rhombic-ovate, sometimes broadly elliptic, 2–5 cm, thin, base rounded to cuneate, lobes 0 or 1–4 per side, sinuses shallow to moderately deep, lobe apex acute to obtuse, margins crenate-serrate to serrate, veins 4–6 per side, apex subacute to obtuse, abaxial surface glabrous, adaxial glabrate young, soon glabrescent. |
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Inflorescences | 5–10-flowered; branches glabrous, sometimes sparsely villous; bracteoles caducous, usually few, margins short-stipitate-glandular. |
6–15-flowered; branches glabrous; bracteoles linear, membranous, margins glandular, larger proximally stipitate-glandular. |
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Flowers | 15–25 mm diam.; sepals narrowly triangular, 5–6 mm, margins usually entire or subentire, rarely glandular-serrate, abaxially glabrous; stamens (10 or)20, anthers pale pink to bright rose or dull purple, sometimes cream, 0.6–0.8 mm; styles 3–5. |
13–18 mm diam.; hypanthium glabrous; sepals narrowly triangular, 5 mm, margins entire or ± glandular-denticulate; stamens 10, anthers ivory; styles 2 or 3. |
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Pomes | greenish with pink or mauve areas, sometimes bright crimson or scarlet, often rather angular, 10–20 mm diam., highly pruinose, not punctate; flesh hard; sepals on collar, spreading; pyrenes 3–5. |
yellow to yellow-orange, dull orange, or ruddy to red, suborbicular, 7–12 mm diam., glabrous; sepals reflexed; pyrenes 2 or 3. |
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2n | = 51, 68. |
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Crataegus pruinosa |
Crataegus dodgei |
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Phenology | Flowering Apr; fruiting Sep–Oct. | |||||||||||||||||||||
Habitat | Thickets, successional fields, brush | |||||||||||||||||||||
Elevation | 0–900 m (0–3000 ft) | |||||||||||||||||||||
Distribution |
AR; CT; GA; IA; IL; IN; KS; KY; MA; ME; MI; MO; NC; NH; NJ; NY; OH; PA; TN; VA; VT; WI; WV; ON; QC
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CT; IL; IN; MA; MI; NC; NY; OH; PA; VA; WI; WV; ON; QC |
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Discussion | Varieties 6 (6 in the flora). Crataegus pruinosa extends from Arkansas to Wisconsin, through the southern Great Lakes to southern New England, and, in the south, mainly in the Appalachians to northern Georgia. In the north of its range, Crataegus pruinosa is mainly a shrub of open successional habitats but in the south may commonly be a taller tree of open or thin woodlands. Many hawthorns have a little waxy bloom on their pomes; it is particularly prominent on Crataegus pruinosa and C. cognata compared to others. Some authors include in C. pruinosa their white-anthered counterparts, here assigned to C. cognata. Whereas C. pruinosa characteristically has entire or subentire sepal margins, some forms in the southwest of the range of the species (for example, C. calliantha Sargent, C. seducta Sargent) may have glandular-serrate sepal margins. They may represent introgression with C. coccinioides. The varieties of C. pruinosa are weakly differentiated from each other, most of them on leaf shape and size characters. The more widespread varieties constitute a range of morphotypes held together by common traits. Crataegus gaudens Sargent is a strikingly distinct form from Pennsylvania that has more or less elliptic leaves with lobes absent; it is clearly related to C. pruinosa. Note that 159. Crataegus ×coleae, a Michigan endemic, will key out here if its laterally scarred pyrenes are missed. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Crataegus dodgei ranges from Wisconsin and northern Illinois through the southern Great Lakes to Connecticut, and south to West Virginia and the North Carolina Blue Ridge. The southern limits are poorly understood. Crataegus dodgei is unusually variable in leaf shape, and also variable in plant size, thorn length, and bracteole glandularity. The typical form resembles a ten-stamen C. margarettae, though often with larger and more veiny leaves. It occurs throughout the range of C. dodgei and is usually easily recognizable. An opposite tendency is found in the C. flavida form, which is also common but where the plants are smaller with usually finer thorns and particularly small, usually acutely lobed leaves. Rather scarce forms with larger, proportionately broad, often suborbiculate leaves and obtuse lobes represent the C. delosii form. Still other variants are known. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 9, p. 574. | FNA vol. 9, p. 603. | ||||||||||||||||||||
Parent taxa | Rosaceae > subfam. Amygdaloideae > tribe Maleae > Crataegus > sect. Coccineae > ser. Pruinosae | Rosaceae > subfam. Amygdaloideae > tribe Maleae > Crataegus > sect. Coccineae > ser. Rotundifoliae | ||||||||||||||||||||
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Synonyms | Mespilus pruinosa | C. chrysocarpa var. dodgei, C. crassifolia, C. delosii, C. dodgei var. flavida, C. dodgei var. rotundata, C. flavida, C. gravesii, C. rotundata | ||||||||||||||||||||
Name authority | (H. L. Wendland) K. Koch: Hort. Dendrol., 168. (1853) | Ashe: J. Elisha Mitchell Sci. Soc. 19: 26. (1903) | ||||||||||||||||||||
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