Flora of the Southeastern United States
2022 Edition

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ROSACEAE

Crataegus pruinosa (H.L. Wendland) K. Koch var. rugosa (Ashe) Kruschke. Wide-leaved Frosted Hawthorn. Phen: Apr-May; Sep-Oct. Hab: Rocky woodlands, upland forests, rock outcrops, mountain pastures. Dist: NY to WI, IA, s. to NC, TN, AR.

ID notes: The preponderance of truncate or subcordate leaf bases in this entity is a marginally distinguishing trait from the typical variety.

Origin/Endemic status: Endemic

Syn: = C, FNA9, Pa, S, W, Lance (2014); < Crataegus flabellata – RAB; > Crataegus mackenzii – K1, S2; < Crataegus pruinosa – GrPl, K1; > Crataegus pruinosa var. pruinosa – F, G; < Crataegus rugosa – F, G

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