Pinyon-juniper woodlands are a common sight in much of Utah. But pinyon trees are declining, while junipers are expanding.

Trees are some of the largest and most widespread organisms on Earth, yet the true number of their species has been an enduring mystery. This lack of knowledge is detrimental to conservation efforts.

A new tropical tree species discovered in Cameroon was recently named after actor and climate advocate Leonardo Di Caprio, who had campaigned against rampant deforestation in the African nation. A new ...

To properly manage a tree, you need to know what species it is. Plus, tree identification is a lot of fun. Knowing a tree’s species is key to understanding their proper growing conditions, how to ...

A new global study of 46,752 tree species shows that many of them are under substantial pressure and poorly protected. The research team has also studied how this situation can be improved by ...

Place the stakes in the native soil surrounding the tree, spacing them equally. “You don’t want the stakes to be within the ...

Filaments of fungi intertwine with the tips of tree roots to form underground networks that seem to benefit both organisms: the filaments, called hyphae, break down minerals in the soil that trees can ...

Climate change is causing trees to sprout earlier in spring. Nevertheless, some tree species are growing less. A study by the ...