Resources we use


Calflora is 1. a website you can use to learn about plants that grow wild in California (both native plants and weeds); and 2. a nonprofit organization responsible for the website. Calflora is run by two paid staff members and a few volunteers. Information in Calflora comes from many sources: public agencies, non-profits, scientists, private donors, and you!



CalPhotos is a collection of 492,513 photos of plants, animals, fossils, people, and landscapes from around the world. A variety of organizations and individuals have contributed photographs to CalPhotos. Please be aware that these various contributors maintain copyright and follow the usage guidelines provided with each image.


California Herps

The goal of this site is to educate, to entertain, and to promote an awareness of and an appreciation for indigenous amphibians and reptiles and their natural habitats. This site does not provide information regarding keeping and caring for captive amphibians or reptiles.


Catalina Island Plant Species

Catalina Island is home to more than 400 native plants, and 200 non-native plants. This is a guide to the most commonly seen plant species.


Encyclopedia of Earth

The Encyclopedia of Earth (EoE) is an electronic reference about the Earth, its natural environments, and their interaction with society. The EoE is a free, expert-reviewed collection of content contributed  by scholars, professionals, educators, practitioners and other experts who collaborate and review each other's work. The content is presented in a style intended to be useful to students, educators, scholars, professionals, as well as to the general public.


Encyclopedia of Life

Our Mission is to increase awareness and understanding of living nature through an Encyclopedia of Life that gathers, generates, and shares knowledge in an open, freely accessible and trusted digital resource.


Eudicots of Orange County, CA

A resource for identification of some flowering plants of Orange County as well as some invasive species.


Joshua Tree National Park - Plant Species List

Here you will find the web-based flora for Joshua Tree National Park. All of the plants found within the boundaries of the park are listed alphabetically under the first letter of the scientific name.


Natural History of Orange County

A field guide to identification of plants, animals and microbes in Orange County, California.


San Diego County Plant Atlas

The Plant Atlas project is an intensive plant specimen collecting effort begun in 2003 employing dozens of volunteer plant enthusiasts and resulting in a very high density survey of the more than 2800 species found in the county. This web site presents the findings of that effort and provides users a variety of tools for researching those findings.


Southern California Butterflies

Southern California is an incredibly diverse place to explore and enjoy the natural world. Mountain forests, beaches, wetlands, grasslands, deserts, meadows, even islands - all are within easy reach with their various lepidopterous inhabitants. I've learned to appreciate these places, and I hope my photographs help convey some of the richness of our native flora and fauna.


Tree of Life web project

The Tree of Life Web Project (ToL) is a collaborative effort of biologists and nature enthusiasts from around the world. On more than 10,000 World Wide Web pages, the project provides information about biodiversity, the characteristics of different groups of organisms, and their evolutionary history (phylogeny).