Crataegus berberifolia |
Crataegus ×lucorum |
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barberry hawthorn, barberry-leaf hawthorn |
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Habit | Shrubs or trees, 60 dm. | Shrubs or trees, 50–70 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 slightly villous, 1-year old brown, older dark gray-brown; thorns on twigs ± straight to ± recurved, 2-years old bright red-brown, slender to moderately stout, 4–5 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. |
deciduous; petiole very slender, length 50–60% blade, glandular; blade ovate to obovate, 4–5 cm, thin, base rounded to broadly cuneate, lobes 3 or 4 per side, sinuses shallow to moderately deep, lobe apex acute, margins serrate, venation craspedodromous, veins 4 or 5 per side, apex acute, surfaces glabrous. |
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Inflorescences | 8–12-flowered; branches densely pubescent; bracteoles linear, margins glandular. |
5–10-flowered; branches sparsely villous; bracteoles caducous, ± linear, membranous, margins glandular-serrate. |
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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. |
18 mm diam.; hypanthium glabrous; sepal margins glandular-serrate; stamens 20, anthers purple; styles 4 or 5. |
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Pomes | reddish to yellow, suborbicular, 8–10 mm diam., glabrous; sepals erose or patent; pyrenes 2 or 3. |
red, ± obovoid, 12–16 mm; flesh succulent; pyrenes dorsally grooved, sides plane. |
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Crataegus berberifolia |
Crataegus ×lucorum |
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Phenology | Flowering May; fruiting Sep–Oct. | |||||
Habitat | Brush, borders of woods, stream banks | |||||
Elevation | 200–300 m (700–1000 ft) | |||||
Distribution |
AL; AR; FL; GA; KS; LA; MO; MS; NC; SC; TN
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IL; IN; NY; OH; 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.) |
Crataegus ×lucorum is scattered from Illinois to New York, exhibiting a mixture of characteristics of ser. Coccineae and ser. Tenuifoliae. (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. 640. | ||||
Parent taxa | Rosaceae > subfam. Amygdaloideae > tribe Maleae > Crataegus > sect. Coccineae > ser. Crus-galli | Rosaceae > subfam. Amygdaloideae > tribe Maleae > Crataegus | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Name authority | Torrey & A. Gray: Fl. N. Amer. 1: 469. (1840) | Crataegus ×lucorum Sargent: Bot. Gaz. 31: 227. (1901) — as species | ||||
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