Photo Credit: Alexander C. Yang

Advancing Western American Botany

Founded by Willis Linn Jepson in 1913 the Society welcomes membership by all individuals interested in Western American botany. Subscriptions to Madroño, our publication, are available for institutions. Membership dues and institutional subscriptions support the publication of Madroño, and our grants and education programs.


Leave a Legacy, Plant a Seed

As western North American wild flora has become increasingly imperiled, grants available to young botanists for innovative botanical research can make a career-changing difference.

Nemophila Newsletter

The newsletter and digital forum of the California Botanical Society.

Botany Ambassador Program

We invite undergraduates, graduate students and postdocs to introduce botany to K-12, “interpret” Madroño articles, and review Madroño manuscripts.

New special issue of Madroño

Plant Diversity and Endemism in the California Floristic Province. Available now!

 ©2023 California Botanical Society

c/o Jepson Herbarium 1001 Valley Life Sciences Building Berkeley, California 94720-2465



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