Grounded in science

CNPS has a proud history as science-based conservation organization. From field collection and wildfire policy to rare plant ranking, our practices and policies are guided by best available science. Read on to explore how CNPS staff, volunteers, students, and community scientists across the state are working to increase our understanding of California native plants to powerful effect. 

Actionable and Principled

Science has the ability not just to create understanding but also inform action. At CNPS, science supports our strategic plan goals: Know, Save, Enhance & Restore, Connect & Collaborate. Data from field and community science informs rare plant ranking and classification of sensitive habitats. Those rankings and classifications help us identify plants and habitats at greatest risk. Equipped with that information, conservation paired with advocacy and strategic communications can drive lasting protection.  

When you support or participate in CNPS work, you can know that every action comes from a commitment to scientific integrity. We are dedicated to standardized methods, peer review, transparency, and partnership with best in class programs like California’s natural heritage program.  

CNPS by the Numbers
0

California native taxa (more than any other state in the U.S.) 

0

California native species at high or very high risk of extinction

0 %

Percentage of California wetlands, grasslands, and vernal pool habitat loss

Featured Work

In a race against time, CNPS science is filling critical data gaps.

Rare Plant Ranking
CNPS drives a rigorous process to assess the state’s rare plants, risk levels, and status. The final product is the CNPS Rare Plant Inventory, a seminal resource in preventing extinction.
Vegetation Mapping and Classification
Across the state, CNPS and partners are completing California’s first statewide vegetation map to inform climate resilience, conservation, and land use decisions.
Biodiversity in Urban Gardens (BUG)
People up and down California are documenting plants and wildlife where they live, increasing our understanding of biodiversity in the urban environment.
Grow with Us
Get Involved

Learn ways to get hands-on experience in the native plant mission.

Give

Support native plant science and the mission to protect California’s plants and habitats.

Artemisia Science Journal 

Learn about Our Initiatives in the Current CNPS Annual Report
More News and Stories from CNPS