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Left: Cerasus leveilleana . Right: Cerasus sargentii . Both photos were taken in Sapporo by Teruyoshi Nagamitsu. Photos are courtesy of the authors of the article: Nagamitsu, T., Tochigi, K., & Kato, S. (2025). Differential admixture and introgression in Cerasus hybrid zones at the south rear edge of cool‐temperate C. sargentii and the north leading edge of temperate C. leveilleana . Plant Species Biology, 41(1). https://doi.org/10.1111/1442‐1984.70026 Hybrid zones at the north leading edge of temperate species, at the south rear edge of cool‐temperate species, and the core of their ranges were investigated. The results imply that genetic admixture and phenotypic introgression have been facilitated, except for the latter in traits contributing to reproductive isolation, in the hybrid zone at the south rear edge of either species under the warming trend after the last glacial period. image