The study and science of plants.

scarred redwoods

Redwood Memory


Old redwood trees have seen fire many times in their lives. It’s because of their fire scars—not in spite of them—that the redwood forest thrives.

Lorenzo Washington

Listen Closely, the Trees are Talking


When people say that trees “talk” to each other, that’s a concept that rests, in part, on an extraordinary and microscopic relationship between arbuscular mycorrhizal fungi and the roots of 90 percent of all plants.

maps of CA biodiversity

Can California Reverse Biodiversity Decline?


At a time when development is paving over habitat and climate change is transforming ecosystems at an unprecedented pace, California Secretary for Natural Resources Wade Crowfoot says the state has a moral imperative to focus on biodiversity.