Recognition of Quercus oocarpa, a Species Distinct from Quercus insignis

Allen J. Coombes, Susana Valencia-A., Maura Quezada, and Maricela Rodríguez Acosta

Published May 2026 in International Oaks No. 37: 59–68

Abstract

Quercus oocarpa has been regarded as a synonym of Q. insignis for at least 20 years. However, a recent collection in fruit from Guatemala indicated that this may not be the case. Following examination of the protologues, available herbarium material, photographs, and iNaturalist observations, it is clear that these are different species and both are recognized here. Differences between the species are given and a key is provided to distinguish them.

Keywords

Mexico, Guatemala, germination

References

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