The world was not always so colorful.

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The world was not always so colorful.
Can the SFPUC’s new nursery slow the spread of a tree-killing fungus?
Vetch and Argentine ants cooperate, exchanging food for protection.
Can the native plant movement outlast its scientific and cultural critics?
Winter in the Bay Area is a good time to spot the lesser-known stage of ferns
Illustrator Jane Kim and the California Center for Natural History share six species to watch for this fall.
The mammoth McApin Tree is not just the venerable elder in its grove. It’s thought the giant redwood holds within its fire-charred rings the surrounding forest’s formative secrets.
A reader has poison hemlock growing near his yard. What should he do?
Can a plant live without photosynthesizing?
Rare plants are common in California. Huckleberry Botanic Regional Preserve sits in an ideal location to display some of the rarest of them.