Crataegus berberifolia |
Crataegus jesupii |
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barberry hawthorn, barberry-leaf hawthorn |
Jesup hawthorn, Jesup's hawthorn |
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Habit | Shrubs or trees, 60 dm. | Shrubs or trees, 70 dm. | ||||
Stems | twigs: new growth orange-brown or green tinged with red, ± pubescent, 1-year old brown, older gray; thorns on twigs ± straight or recurved, 2-years old shiny black to chestnut brown, fine or stouter, (2–)3–4(–6.5) cm. |
twigs: new growth reddish, glabrous, 1-year old dark brown, often strongly pruinose, 2-years old blackish, older dark gray, becoming paler later; thorns on twigs recurved to ± straight, 2-years old blackish, ± slender, 3–5 cm. |
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Leaves | petiole 4–6 mm, length 13–18% blade, glabrescent, eglandular; blade narrowly obovate to oblanceolate, (2.5–)3(–4) cm, coriaceous, base narrowly cuneate, lobes 0, margins finely crenate or serrate except at base, or only beyond widest part, venation craspedodromous, veins 4–6 per side, apex subacute to obtuse, lustrous, abaxial surface ± densely pilose on veins, sometimes pubescent on surface, adaxial hairy young, glabrescent or becoming scabrous. |
petiole 2–4 cm, glabrous, glandular; blade sometimes ± blue-green mature, trullate-ovate, 4–7 cm, thin but firm, base ± broadly cuneate, lobes 3 or 4 per side, sinuses deep, angled, lobe apex often ± aligned, acuminate, margins serrate, proximal teeth gland-tipped, veins 4 or 5 per side, apex acute, abaxial surface glabrous, adaxial short-pubescent young, soon glabrescent. |
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Inflorescences | 8–12-flowered; branches densely pubescent; bracteoles linear, margins glandular. |
4–8-flowered; branches glabrous; bracteoles few, margins glandular. |
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Flowers | 10–20 mm diam.; hypanthium villous or glabrous; sepals 3–5 mm, margins entire, abaxially glabrous; stamens 10 or 20, anthers cream or pink; styles 2 or 3. |
15–18 mm diam.; hypanthium glabrous; sepals ± triangular, 4–6 mm, margins entire or glandular-serrate; stamens 10 (20), anthers pink or rose; styles 4. |
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Pomes | reddish to yellow, suborbicular, 8–10 mm diam., glabrous; sepals erose or patent; pyrenes 2 or 3. |
red, pyriform-oblong, 8–10 mm diam., slightly pruinose; sepals spreading; pyrenes 3–5, dorsally grooved. |
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Crataegus berberifolia |
Crataegus jesupii |
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Phenology | Flowering May; fruiting Sep–Oct. | |||||
Habitat | Borders of woods, thickets | |||||
Elevation | 20–300 m (100–1000 ft) | |||||
Distribution |
AL; AR; FL; GA; KS; LA; MO; MS; NC; SC; TN
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CT; MI; NY; OH; PA; WI; ON |
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Discussion | Varieties 2 (2 in the flora). Crataegus berberifolia is widespread from Texas to Missouri, Florida, and Virginia; it is particularly abundant in Louisiana. Crataegus berberifolia is little differentiated from some forms of C. crus-galli, except in indumentum; it has relatively small and less variably shaped leaves. Its distribution is quite different. Intermediates with hairy leaves and glabrous inflorescences or nearly glabrous leaves and hairy inflorescences may represent hybrids with C. crus-galli (where they might be reached in the key). Such a situation is found in C. araioclada. Abrasion of the adaxial leaf pubescence may occur, rendering identification more difficult with fruiting material. Crataegus berberifolia has a plethora of yellow and orange-fruited forms, particularly from southern Louisiana. Crataegus fera and C. tersa are red-fruited, C. crocina yellow. The fruit color in the type is unknown; E. J. Palmer (in specimen annotation) called it yellow-orange. A form with exceptionally white-tomentose leaves near Copenhagen, Louisiana, is probably this species. Crataegus regalis var. paradoxa (Sargent) E. J. Palmer, from Missouri and adjacent Kansas and Arkansas, is probably a hybrid between the deeply serrated 'regalis' leaf form of C. crus-galli and a form of C. berberifolia. Two common forms of C. berberifolia occur, treated here as varieties: var. engelmannii with ten pink anthers and var. berberifolia with 20 cream anthers. Forms with 20 pink or ten cream anthers also occur sporadically. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Crataegus jesupii ranges from Wisconsin to Connecticut, Ohio, and Pennsylvania. In Michigan, Crataegus jesupii is notable for its stipitate-glandular bracteoles. Forms with wider leaves, about as wide as long, are represented by C. filipes. An otherwise identical Ontario specimen has 20 stamens and would key out to C. beata. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 9, p. 540. | FNA vol. 9, p. 571. | ||||
Parent taxa | Rosaceae > subfam. Amygdaloideae > tribe Maleae > Crataegus > sect. Coccineae > ser. Crus-galli | Rosaceae > subfam. Amygdaloideae > tribe Maleae > Crataegus > sect. Coccineae > ser. Populneae | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | C. bellula, C. filipes | |||||
Name authority | Torrey & A. Gray: Fl. N. Amer. 1: 469. (1840) | Sargent: Rhodora 5: 61. (1903) | ||||
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