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Editor's Picks

Group photo at Harvard Herbarium
The Harvard University Herbaria hosted a novel Oak Taxonomy...
Jeannine Cavender-Bares | Apr 21, 2026
Morgan and friends in Argentina
Visits to three collections of Quercus in Buenos Aires...
Morgan Santini | Apr 05, 2026
Michel Duhart and Paco Garin at Jardín Botánico Wilson, Costa Rica
On April 1st, the very day he turned 103, a great friend...
Francisco Garin Garcia | Apr 05, 2026

Plant Focus

Quercus orocantabrica
Roderick Cameron and Carlos Vila-Viçosa give an account of this intriguing species from northwestern Iberia with a complex taxonomic and...

Oak Cultivars Leafing Out at Pavia Nursery

Here are some photos of four grafted oak cultivars at Pavia Nursery as they began to leaf out this spring. You can read more about the grafting technique we use in my article 'Clonal Oak Propagation by Grafting' published in International Oaks No. 20, 2009. IOS members can download it here.

Quercus palustris 'Betty Jean' Quercus petraea 'Laciniata Crispa'
Quercus robur 'Concordia' Quercus velutina 'Albertii'