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Editor's Picks

Quercus coccifera, 97 cm dbh and 15 m canopy spread
Cyprus, April-May 2026 – Vacation Impressions
Images and insights from Ezra Barnea’s journey to Cyprus’s...
Ezra Barnea | Jun 13, 2026
Lainey Kirshberger and Ryan Silver, students at Oklahoma State University, participated in the fieldwork and will lead the genetic and epigenetic analysis under the supervision of Dr. Antonio R. Castilla.
Epigenetics as a Potential Mechanism of Rapid Response to Climate Change in the Endangered Oak Quercus hinckleyi
Endangered oak Quercus hinckleyi shows strong genetic...
Website Editor | Jun 09, 2026
The current Red List status and modelled outlook for the eight Californian oak species, plus tanoak
The Threat to California’s Oaks Is Greater than Had Been Anticipated
New paper should significantly change our approach to...
Steve Potter | Jun 09, 2026

Plant Focus

Quercus orocantabrica
Species Spotlight: Quercus orocantabrica Rivas Mart., Penas, T.E.Díaz & Llamas
Roderick Cameron and Carlos Vila-Viçosa give an account of this intriguing species from northwestern Iberia with a complex taxonomic and...
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Double Sprouting

By Harriet Tupper | June 27, 2016

Here are two photos of acorns collected at Hackfalls end of April and now germinating. They are Quercus macrocarpa and Q. crassifolia. If you look closely, all the acorns illustrated have two roots and two shoots. This seems to be the Quercus equivalent of having twins. Will these grow into decent trees or will they always be a bit of a problem because of being double? and is this normal?

Quercus crassifolia Quercus macrocarpa