Flora of the Southeastern United States
2022 Edition

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References

Phipps, J.B. 2016. Studies in Mespilus, Crataegus, and ×Crataegomespilus (Rosaceae), I. Differentiation of Mespilus and Crataegus, expansion of ×Crataegomespilus, with supplementary observations on differences between the Crataegus and Amelanchier clades. Phytotaxa 257 (3): 201-229.