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The oak tree in Skjomendalen © Gerhard Sørensen-Fuglem and Cecilia Piccirilli Bjerkeset
An oak grows north of the Arctic Circle in Norway
Website Editor | Aug 14, 2023
Unusual symptoms linked to phytoplasma infection in Quercus humboldtiii, Colombia © Eric Boa
Symptoms linked to phytoplasma infection found in Quercus...
Website Editor | Aug 06, 2023
Different names are being used for one species.
Website Editor | Jun 20, 2023

Plant Focus

A small but mature Alabama sandstone oak producing acorns © Patrick Thompson
A Critically Endangered dwarf oak 

¡Viva México! September 27-October 18, 2019

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Béatrice Chassé

Published May 2020 in International Oaks No. 31: 133–160


For such a long, long time, I have wanted to go back to Mexico.

The 6th International Oak Society Conference (Puebla, 2009) sparked my infatuation with this country and an extended trip the following year, covering most of northern Mexico (Chassé 2011), strengthened the ties that had been woven between Mexico and me – with the oaks, of course, but to a no lesser degree with the people, the food (and drinks), the language, the history, the literature... This autumn’s voyage was in all ways as splendid as the 2010 journey with, in addition, more varied landscapes and even more oak species. During this trip, my companions and I had the opportunity to identify 47 oak taxa, and there are half a dozen more that we are still puzzling over.


Álvarez-Zúñiga, E., A. Sánchez-González, and S. Valencia-Avalos. 2010. Los encinos del Parque Nacional Los Mármoles, Hidalgo, México. Madera y bosques 16(4): 55-66.

Bakhtiarova, G. 2017. Surrealism on American Soil: André Breton, Edward James and Others in the Jungle. International Journal of Arts & Sciences 10(02): 415-420.

Cavender-Bares, J., A. Gonzáles-Rodriguéz, D.A.R. Eaton, A.L. Hipp, A. Beulke, and P.S. Manos. 2015. Phylogeny and biogeography of the American live oaks (Quercus subsection Virentes): a genomic and population genetics approach. Molecular Biology 24(14): 3668-3687.

Chassé, B. 2011. 9490 Kilometers Across Mexico. International Oaks 22: 70-88.

Domínguez-Domínguez, O. and G. Pérez-Ponce de León. 2009. ¿La mesa central de México es una provincia biogeográfica? Análisis descriptivo basado en componentes bioticos dulceacuícolas. Rev. Mex. Biodiv. 80(3): 835-852.

González-Rodriguéz, A., D.M. Arias, S. Valencia-Avalos, and K. Oyama. 2004. Morphological and RAPD analysis of hybridization between Quercus affinis and Q. laurina (Fagaceae), two Mexican red oaks. American Journal of Botany 91(3): 401-409.

HippA.L., P.S. Manos, M. Hahn, M. Avishai, C. Bodénès, J. Cavender-Bares, A. Crowl, M. Deng, T. Denk, S. Fitz-Gibbon, O. Gailing, M.S. González-Elizondo, A. González-Rodríguez, G.W. Grimm, X.-L. Jiang, A. Kremer, I. Lesur, J.D. McVay, C. Plomion, H. Rodríguez-Correa, E.-D. Schulze, M.C. Simeone, V.L. Sork, and S. Valencia-Avalos. 2019. Genomic landscape of the global oak phylogeny. New Phytologist. doi.org/10.1111/nph.16162.

Jeanson, M., and C. Fauve. 2019. Botaniste. Paris: Grasset.

Kremer, A., and A.L. Hipp. 2019. Oaks: an evolutionary success story. New Phytologist. Tansley review.

Rodríguez-Gomez, F., K. Oyama, M. Ochoa-Orozcoet, L. Mendoza-Cuenca, R. Gaytán-Legaria, and A. González-Rodríguez. 2017. Phylogeography and climate-associated morphological variation in the endemic white oak Quercus deserticola (Fagaceae) along the Trans-Mexican Volcanic Belt. Botany 96(2): 121-133.

Trelease, W. 1924. Memoirs of the National Academy of Sciences. Volume XX. Washington: Government Printing Office.

Valencia-A., S., J.L. Sabás-Rosales, and O.J. Soto-Arellano. 2016. A new species of Quercus, section Lobatae (Fagaceae) from the Sierra Madre Oriental, Mexico. Phytotaxa 269(2): 120-126. 

Valencia-A., S., 2017. Quercus meavei Valencia-A., Sabás & Soto: a Recently Described Oak From Eastern Mexico. International Oaks 28: 25-28.

Valencia-A., S., and A.J. Coombes. 2020. Nomenclatural revision and lectotypification of five species of Mexican oaks: Quercus (Fagaceae). Phytotaxa 428(2): 81-92.