Based on recent studies about the genetic and morphological variation of the Q. pubescens group in southern Italy (Di Pietro et al. 2020a, 2020b, 2021), it is not possible to distinguish the taxa currently known as Q. amplifolia, Q. congesta, Q. dalechampii, Q. ichnusae, Q. leptobalana, and Q. virgiliana. For this reason we consider all these names as synonyms of Q. pubescens subsp. pubescens (Di Pietro et al. 2020a, 2020b, 2021). Di Pietro R, Di Marzio P, Antonecchia G, Conte AL, Fortini P (2020a) Preliminary characterization of the Quercus pubescens complex in southern Italy using molecular markers. Acta Botanica Croatica 78(2):107–115. https ://doi.org/10.2478/botcr o-2019-0026; Di Pietro R, Conte AL, Di Marzio P, Gianguzzi L, Spampinato G, Caldarella O, Fortini P (2020b) A multivariate morphometric analysis of diagnostic traits in southern Italy and Sicily pubescent oaks. Folia Geobotanica 55: 163–183; Di Pietro R, Conte AL, Di Marzio P, Fortini P, Farris E, Gianguzzi L, Müller M, Rosati L, Spampinato G, Gailing O (2021) Does the genetic diversity among pubescent white oaks in southern Italy, Sicily and Sardinia islands support the current taxonomic classification? European Journal of Forest Research 140: 355–371. https://doi.org/10.1007/s10342-020-01334-z

Abruzzo; Basilicata; Calabria; Campania; Emilia-Romagna; Friuli Venezia Giulia; Lazio; Liguria; Lombardia; Marche; Molise; Piemonte; Puglia; Sardegna; Sicilia; Trentino-Alto Adige; Toscana; Umbria; Valle d'Aosta; Veneto;