Over a third of threatened or understudied oak tree species in Mesoamerica ... native to southern Baja California Sur, Mexico; vulnerable oak species Quercus gulielmi-treleasei native to Costa ...

California oak trees have long served ... which means they must be processed to become edible. Each species of acorn is different: some are more carb-heavy, some more fat-heavy and some have ...

In North America, there are about 90 different oak species, with more than 21 found in California. Acorns, the fruit of oak trees, are rich with fats, carbohydrates and proteins. They are a staple ...

As the name suggests, California oak moths are a native species, and their offspring like to feed on native coast live oak trees, or any other oak tree that happens to be in their path.

There are four species of oak trees the insect has been affecting: the coast live oak, California black oak, canyon live oak, and the Engelmann oak, according to Mace. The coast live oak is the ...

Claifornia residents can join a volunteer “blitz” this June to help detect and map infestations of an invasive beetle that is ...

It struck him as a fish out of water: The oak was growing in a spot much hotter and drier than the species’ typical habitat. He and a colleague hypothesized the tree might have first sprouted ...

The tree has plunged the Jurupa Valley into an ongoing debate in California ... It’s a Palmer’s oak, which is a species of “clonal tree,” a network of genetically identical shrubs ...

Unlike traditional oak trees, this species reproduces by cloning itself, allowing it to make genetically identical sprouts after being burned in wildfire. Nestled on a craggy outcrop overlooking ...

An invasive species of beetle that has ... menace as it can kill several types of trees, including the box elder, the California sycamore, valley oak, Japanese maple and American sweet gum.