California Botanical Society

California Botanical Society The California Botanical Society was founded by Willis Linn Jepson in 1913 and serves a major role in advancing Western American botany.

The Society welcomes membership by all interested individuals worldwide and encourages members to submit manuscripts on original research to the Editor of Madroño for consideration as publications in the journal. Articles and notes (in English or Spanish) on ecology, systematics, floristics, conservation biology, and other areas of organismal botany are routinely published in Madroño, in addition

to noteworthy collections. The Society sponsors annual or biennial graduate student meetings and an annual banquet at various locations in California.

Disturbances can shape plant communities long after the initial event. Although the persistence and scale of these effec...
08/24/2026

Disturbances can shape plant communities long after the initial event. Although the persistence and scale of these effects remain complex, many instances can conflict with restoration efforts. In a study, Annie Meeder et al examined Santa Cruz Island, California, as a compelling case study in the legacy effects of disturbances. Santa Cruz Island has been subject to a century of intensive grazing by non-native cattle, feral sheep, and rooting by feral pigs, followed by large-scale eradication and fire management interventions.

In their study, they resurveyed 40 permanent grassland plots in southwestern Santa Cruz Island that were previously sampled in the 1990s, during the height of pig activity. Their results suggest that while pig disturbance had acute short-term effects, the most enduring legacy may be the non-native-dominated communities that became established in the late 19th century.

If interested in reading more use link below:
https://doi.org/10.3120/0024-9637-260008

We just published an old Botany Speaker recording on our YouTube!! Search for us on YouTube to find Carrie M. Tribble ta...
08/21/2026

We just published an old Botany Speaker recording on our YouTube!! Search for us on YouTube to find Carrie M. Tribble talking about "From the High Andes to the Pacific Northwest: evolution and biogeography of geophytic plants"

Happy to announce that in the coming weeks, we will have the opportunity to learn more about the Ostevik Lab and its Ph....
08/21/2026

Happy to announce that in the coming weeks, we will have the opportunity to learn more about the Ostevik Lab and its Ph.D. students! The first in our upcoming series will be Rajesh Neupane, who is studying Drought Adaptation in Wild Sunflowers!

Ostevik Lab
Rajesh Neupane

Nominate an Aster! Do you have someone who was a great influence in your botanical career, or would you like to highligh...
08/20/2026

Nominate an Aster! Do you have someone who was a great influence in your botanical career, or would you like to highlight all the great work they have done?

Links are in our bio for submissions! Nominate someone today!

For this week's Botanical Outreach, we received a request from a lecturer from the University of Baltistan in Pakistan! ...
08/18/2026

For this week's Botanical Outreach, we received a request from a lecturer from the University of Baltistan in Pakistan!

Hybridization is common among plant taxa, and interspecific hybridization has played a major role in plant evolution, in...
08/17/2026

Hybridization is common among plant taxa, and interspecific hybridization has played a major role in plant evolution, including speciation events, adaptive introgression, and range expansion. In a study by Ryan C. Buck et al., the authors investigate reports of hybrid oaks on California's Channel Islands using nuclear and chloroplast whole-genome sequence data to further assess their species identities.

On islands, weakened isolating barriers, novel interactions, and new niches may promote the hybridization of colonizing species. Generally, morphological traits are useful when species limits are well defined, but when morphological variation is common, it can be difficult to distinguish between intermediacy and intraspecific variation.

If you are interested in learning how they elucidated the hybrid oak relationships using nuclear and chloroplast genome sequencing data, use the link below:
https://doi.org/10.3120/0024-9637-260014

Interested in watching Nancy Morin's talk about Nemacladus, we just published the recording of their talk on our Youtube...
08/15/2026

Interested in watching Nancy Morin's talk about Nemacladus, we just published the recording of their talk on our Youtube Channel!

Are you conducted any botanical research, and want to spread awareness of your work and what you have accomplished? Ever...
08/14/2026

Are you conducted any botanical research, and want to spread awareness of your work and what you have accomplished? Every Friday, CalBotSoc will be posting about botanical research around the Western America!

Nominate an Aster! Do you have someone that was a great influence in your botanical career, or just highlight all the gr...
08/14/2026

Nominate an Aster! Do you have someone that was a great influence in your botanical career, or just highlight all the great work they have done?

The links are in our bio for a submission! Nominate someone today!

Are you interested in learning about biology and evolution of Aytoniaceae? We just published, Ixcel González-Ramirez's t...
08/12/2026

Are you interested in learning about biology and evolution of Aytoniaceae? We just published, Ixcel González-Ramirez's talk, "Studies on the biology and evolution of Aytoniaceae: a liverwort way of being a land plant" on our Youtube!

We are currently processing through the backlogs of previous recordings that haven't been published just yet, so hold on tight with us!

If you are interested, you can visit our youtube channel:
The California Botanical Society
Link to the channel is in our Bio as well!

Address

1001 Valley Life Sciences Building
Berkeley, CA
94720

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

+15106422465

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