Flora of the Southeastern United States
2022 Edition

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ROSACEAE

Crataegus uniflora Münchhausen. Oneflower Hawthorn. Phen: Apr-May; Sep-Oct. Hab: Thin woodlands, disturbed lands, roadsides, rock outcrops, often in xeric or sub-xeric conditions. Dist: NY to peninsular FL, w. to IL, MO, OK, e. TX.

ID notes: Normally a shrubby species, 0.5-2 m in height, though local forms may reach 4 m, particularly in n. FL. Minor variation occurs in foliage, but fairly consistent are the slender thorns (2-7 cm long) and foliaceous calyx lobes persistent on the fruit.

Origin/Endemic status: Native

Syn: = Ar, C, F, FNA9, G, K1, K3, Pa, RAB, S, Tn, W, Lance (2014); > Crataegus gregalis – S2; > Crataegus pentaneura – S2; > Crataegus raleighensis – S2; > Crataegus uniflora – S2

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