California Botanical Society


2023 Botany Speaker Series!

Every 2nd Thursday, 7pm PT »

Congratulations to the winners of the
29th Graduate Student Symposium

at Cal Poly Humboldt
Saturday-Sunday, April 1-2, 2023

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29th Graduate Student Symposium at Cal Poly Humboldt makes news!

Congratulations to the 2022 grantees
of Paul Silva Student Research Grants

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Congratulations to the 2022 Annetta Carter Memorial Fund grantee

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Congratulations to the 2021 winners
of California Botanical Society
Student Science Fair Prizes

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NEW! Student Memberships only $20

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Paul Silva Student Research Grants
Next deadline: May 15, 2023

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Annetta Carter Memorial Fund Grants
Next deadline: December 31, 2023

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COVID-19 pandemic updates

Madroño issues are on track and welcoming new submissions

Information and submission guidelines »

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.

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Nemophila Newsletter
The newsletter and digital forum of the California Botanical Society.

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Botany Ambassador Program
We invite undergraduates, graduate students and postdocs to introduce botany to K-12 and beyond, "interpret" Madroño articles, and review Madroño manuscripts.

Botany Ambassador Program Details »

Botany Teaching Materials »

Botany Ambassadors in the Classroom »

Read Madroño summaries »

New special issue of Madroño
Phenological Patterns in the Flora of Western North America
Available now!

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New special bryophyte issue of Madroño
Contributions toward a Bryoflora of California V and the West
Available now!

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About The Society

The California Botanical Society was founded by Willis Linn Jepson in 1913 and serves a major role in advancing Western American botany with its five primary program services:

  • Scientific Publications. Since 1916, the Society has published the peer-reviewed, scientific journal Madroño, the leading source of research articles on the ecology, systematics, floristics, restoration, and conservation biology of Western American flora, including those of Mexico, Central and South America.
  • Annual Banquet. The Society sponsors a banquet and lecture held annually in California.
  • Research Support. The Society supports botanical research on the green plants of Baja California through grants under the Annetta Carter Memorial Fund, and supports students undertaking botanical research within western North America through Paul Silva Student Research Grants.
  • Graduate Student Support. Every other year, in conjunction with our annual banquet, the Society sponsors a student-organized symposium where students come together to present their research and participate in a diverse community of botanists. The Society provides reduced prices and other subsidies to students to encourage their participation in all Society events, including travel grants to attend the biennial Graduate Student Symposia. Student research support is provided through Paul Silva Student Research Grants and Annetta Carter research grants, and students are encouraged to publish their research in Madroño. As part of the Botany Ambassador Program, the Society offers professional development opportunities to students, including writing non-technical summaries that "interpret" recent Madroño articles, serving as reviewers of Madroño manuscripts, and bringing botany to K-12 schools.
  • Community Outreach. The Society sponsors social events for professional networking purposes, field trips, and lectures. The Society also publishes Nemophila, a digital newsletter and forum covering topics of interest to our members, including upcoming meetings, new botanists in the state, and articles about plants and the environment. Additionally, the Society brings botany to K-12 schools through the Botany Ambassador Program, and aims to encourage our next generation of botanists by sponsoring awards for outstanding botany projects presented by budding K-12 scientists at recognized California science fairs.
The Society welcomes membership by all individuals interested in Western American botany. Subscriptions to Madroño are available for institutions. Membership dues and institutional subscriptions support the publication of Madroño, and our grants and education programs.


Letter to Members, June 4th 2020 »

CBS centennial 100 years of the California Botanical Society.
See photos from the Centennial Banquet.
Photo: Ana Penny
Photo: Ana Penny