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Plant Focus

Quercus macdougallii
A rare oak endemic to the Sierra Juárez in Oaxaca

Quercus pubescens and friends in Sicily, October 18–23, 2020

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Morgan Santini

Published May 2021 in International Oaks No. 32: 135–144


Amongst European quercophiles probably one of the most debated topics is the incredible morphological diversity of Quercus pubescens (downy oak) and whether these different morphotypes should be considered one species or not. The many names that have been created by different authors throughout time and in different countries is proof that this is not an easy question.


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Brullo, S., R. Guarino, and G. Siracusa. 1999. Revisione tassonomica delle querce caducifoglie della Sicilia. Webbia 54(1): 1-72. Giardina, G. 2011. Sicilia piante vegetazione e ambienti naturali. Orto Botanico Università di Palermo.

Marzio, F.M. 2011. Studi sulla distribuzione delle Querce caducifoglie nel Salento. Unpublished doctoral thesis. Università di Pisa.

Mossa, L., G. Bacchetta, and S. Brullo. 1999. Quercus ichnusae (Fagaceae). A new species from Sardinia. Israel Journal of Plant Sciences 47: 199-207.

Pignatti, S. 1982. Flora d'Italia. 1: 113-120. Bologna: Edagricole.

Schicchi, R. and F.M. Raimondo. 2007. Alberi Monumentali delle Madonie. Università Studi Palermo, Ente Parco delle Madonie.