Crataegus berberifolia |
Crataegus delawarensis |
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barberry hawthorn, barberry-leaf hawthorn |
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Habit | Shrubs or trees, 60 dm. | Shrubs, 10–20 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 light green at first, pubescence not recorded, 1-year old dull red-brown, marked by occasional large, oblong lenticels, 2-years old light gray-brown; thorns on twigs straight or slightly curved, 1-year old dark red-brown, slender, 3–4 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. |
stipules linear, acuminate, coarsely glandular-serrate; petiole length not recorded, distally slightly wing-margined, grooved, pubescence not recorded, glandular, glands deciduous, few, dark red, small; blade abaxial paler than adaxial, light yellow green adaxially, rhombic to ovate, 5–6 cm length/width = 1.8–2, membranous, base narrowed from near mid blade, or base broadly cuneate and entire on vigorous shoots, lobes 3 or 4 per side distally, short, lobe apex acute, margins finely, sometimes doubly, serrate, teeth gland-tipped, veins 3 or 4 per side, apex acute, surfaces glabrous. |
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Inflorescences | 8–12-flowered; branches densely pubescent; bracteoles linear, margins glandular. |
5–8-flowered; branches glabrous; bracteoles reddish, acute, 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 mm diam.; hypanthium usually glabrous, sometimes hairy; sepals broadly triangular, margins coarsely glandular-serrate, apex acuminate; stamens 10, anthers pale yellow; styles 3 or 4, arising from rough tomentum. |
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Pomes | reddish to yellow, suborbicular, 8–10 mm diam., glabrous; sepals erose or patent; pyrenes 2 or 3. |
dark red, suborbicular, 11–12 mm diam. wider than tall, not pruinose; sepals closely appressed; pyrenes 3 or 4, dorsally prominently grooved. |
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Crataegus berberifolia |
Crataegus delawarensis |
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Phenology | Flowering Apr; fruiting Sep–Oct. | |||||
Habitat | Brush | |||||
Elevation | 20–100 m (100–300 ft) | |||||
Distribution |
AL; AR; FL; GA; KS; LA; MO; MS; NC; SC; TN
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DE |
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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 delawarensis is known only from northern Delaware; it differs from other members of the series by its narrow leaf blades and yellow anthers. (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. 568. | ||||
Parent taxa | Rosaceae > subfam. Amygdaloideae > tribe Maleae > Crataegus > sect. Coccineae > ser. Crus-galli | Rosaceae > subfam. Amygdaloideae > tribe Maleae > Crataegus > sect. Coccineae > ser. Populneae | ||||
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Subordinate taxa | ||||||
Synonyms | C. pruinosa var. delawarensis | |||||
Name authority | Torrey & A. Gray: Fl. N. Amer. 1: 469. (1840) | Sargent: Bot. Gaz. 35: 102. (1903) | ||||
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