Crataegus uniflora Münchhausen. Common name: Oneflower Hawthorn. Phenology: Apr-May; Sep-Oct. Habitat: Thin woodlands, disturbed lands, roadsides, rock outcrops, often in xeric or sub-xeric conditions. Distribution: 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

Synonymy ⓘ: = Ar, C, F, FNA9, G, NY, Pa, S, Tat, Tn, W, Lance (2014); = n/a — Il; > Crataegus arenicola Ashe; > Crataegus gregalis Beadle — S13; > Crataegus pentaneura Ashe — S13; > Crataegus raleighensis Ashe — S13; < Crataegus uniflora Münchh. — RAB; > Crataegus uniflora Münchh. — S13; Crataegus uniflora Münchh. Basionym: Crataegus uniflora Münchh. 1770

Links to other floras: = Crataegus uniflora - FNA9

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Heliophily ⓘ: 7