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Editor's Picks

Karl Georg Theodor Kotschy was an Austrian botanist and...
Eike Jablonski | Jun 11, 2016
Quercus grisea - Greenlee County, AZ
This article is an account of the oak field trip organized...
Charles Snyers | Sep 22, 2017
North American oaks have a northern temperate origin and...
Website Editor | Oct 12, 2017

Plant Focus

Quercus acutissima subsp. kingii
Quercus acutissima Carruth. is a species whose natural distribution covers a vast territory in East and Southeast Asia, from central Nepal...

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There are meetings that prove to be crucial, primordial encounters that mark our lives. My meeting with Michel Timacheff, an afternoon of...
Rainer Lippert has always been interested in old trees. At the age of 16 he started to visit the largest trees in his home district in...
It sounds like something out of science fiction, but David Cranwell has managed to create a reality where an acorn planted in New Zealand...
Since 2012 I have traveled to Costa Rica four times, searching for acorns of some Quercus species that were not represented in the...
The Oaks of the Americas Conservation Network (OACN) is an interdisciplinary consortium of oak experts from universities, botanic gardens,...
As Co-Registrar of oak cultivars I think it’s important to periodically remind members about some of the exceptional selections of oaks...
The Botanical Garden of Porto is located on the west side of the city of Porto, on a plateau overlooking the mouth of the Douro River and...
Quercus semecarpifolia, commonly known as brown oak, is the main forest-forming evergreen tree species from upper temperate to subalpine...
For this Species Spotlight we train our follow spot on an oak that is quite a star of the quercine scene: Quercus hypoleucoides (stage name...
North American oaks have a northern temperate origin and only later colonized Mexico and Central America, according to a new study. 
Our German speaking members will be interested to learn that a new book on giant oaks in Germany was published in September 2017: Riesige...
Bernard de La Rochefoucauld, long-time IOS member with his wife Brigitte, founder of l’Arboretum des Grandes Bruyères, died July 18, 2017,...

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