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CNPS originally developed the Inventory of Rare and Endangered Plants of California with the guidance of botanist and evolutionary biologist G. Ledyard Stebbins. [2] The 1st Edition was printed in 1974. The last print version, the 6th Edition, was published in 2001. The 8th Edition, released in 2010 with ongoing updates, is the current database ...
In the first five years of the RPTH project, between the 2010-2014 seasons, volunteers and staff successfully updated over 2,500 occurrences of rare, threatened, and endangered species to both the California Rare Plant Ranks and California Department of Fish and Wildlife's California Natural Diversity Database (CNDDB). Over 1,000 of these ...
Sidalcea robusta is endemic to Butte County, California, where it is known from about 20 occurrences, including some near Chico. It is a resident of chaparral and woodland habitat in mountain foothills. It is an Endangered species listed by the California Native Plant Society Inventory of Rare and Endangered Plants and The Nature Conservancy ...
No photos of the living plant existed prior to a recent search effort, experts said. Skip to main content. News. 24/7 help. For premium support please call: 800-290-4726 more ways ...
The Center for Plant Conservation (also known as CPC) is a non-profit organization that includes a network of over 50 participating institutions. [1] Its primary mission is the conservation and restoration of rare native plants of the United States , its territories, and Canada .
The plant has no effective method to disperse its seeds; other species have seeds that can catch a ride on the wind, on an animal’s fur or in a bird’s stomach.
Navarretia ojaiensis plant is a Critically endangered species on the California Native Plant Society Inventory of Rare and Endangered Plants. [4]Many of the known occurrences may no longer exist, because they are in areas that have experienced urban development. [2]
Monardella viminea is a federal and state listed Endangered species, and a Critically Imperiled species on the California Native Plant Society Inventory of Rare and Endangered Plants. [3] It is seriously threatened by urbanization, hydrological alterations, road improvements, vehicles, and invasive species of plants.