Log in

Editor's Picks

Seedlings examined by Oak Interest Group
The Oak Action Group of Farm Forestry New Zealand is...
Kathryn Hurr | Jun 10, 2020
john_fairey1.jpg
Remembering John Fairey, legendary plantsman and founder of...
Adam Black | May 21, 2020
quercus_x_vilmoriniana_proce_nantes_0159.jpg
An intercontinental artificial hybrid raised at Arboretum...
Roderick Cameron | Apr 12, 2020

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...

Plant Focus

Species Spotlight: Quercus douglasii Hook. & Arn.

qd.jpg

Quercus douglasii is an endemic California oak tree, affectionately called “the blue oak”.

Species Spotlight: Quercus acutissima subsp. kingii Menitsky

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 in the west to the Pacific coast of Honshu in the east, and from northern Szechwan to central Burma, northern Thailand, and Laos in the south.

Species Spotlight: Quercus rugosa Née

Given its rugged beauty and hardiness, Quercus rugosa is recommended for gardens, parks, and arboreta in most regions. As it grows naturally in such an extended area and across a variety of habitats and altitudes, there is also scope for further experimentation with seed sourced from different provenances.

Cultivar Close-up: Thread and Lace

As Co-Registrar of oak cultivars I think it’s important to periodically remind members about some of the exceptional selections of oaks that are out there in collections and nurseries. In the interest of appealing to a broader group, I thought I would select a cultivar from the Old World and one from the New.

Species Spotlight: Quercus semecarpifolia Sm.

Quercus semecarpifolia, commonly known as brown oak, is the main forest-forming evergreen tree species from upper temperate to subalpine regions (2,500–3,300 m) in Western Himalaya.

Species Spotlight: Quercus hypoleucoides A. Camus

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: silverleaf oak). 

Cultivar Close-up: Hi-Yo Silver!

As we celebrate 25 years of the IOS, we take a look at oaks that have an association with silver. In a Species Spotlight Joeri Strijk describes Quercus argentata (the epithet derives from the Latin word for silver: argentum) and below are three well-known cultivars with silver associations.

Species Spotlight: Quercus argentata Korth.

Quercus argentata is an evergreen tropical oak native to the islands of Borneo (absent in Brunei), Sumatra, and Western Java, as well as to Peninsular Malaysia.

Species Spotlight: Quercus ithaburensis Decne.

Quercus ithaburensis Decne. is a deciduous oak species native to the East Mediterranean basin. 

A naturally occurring hybrid, widely adopted by the nursery trade in the form of cultivars, labors under a misnomer: there is precious little Hispanic about Quercus ×hispanica

Pages

Subscribe to Plant Focus