Welcome to the Inventory of Rare, Threatened, and Endangered Plants of California

The CNPS Inventory of Rare and Endangered Plants has served as a resource for information about California's rare plants for over 35 years. The Inventory is a widely-recognized resource that promotes scientific research, conservation planning, and the enforcement of environmental laws. To search for information regarding California's rare and endangered plants, please click on the "Simple Search" or "Advanced Search" buttons below, or enter a word or phrase directly into the search bar to begin.

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Carrizo Plain

Additions / Changes / Deletions

Polemonium pulcherrimum var. shastense added to 1B.2 on 2014-12-16
Trifolium siskiyouense changed from 3.2 to 1B.1 on 2014-12-16
Malacothamnus helleri changed from 4.3 to 3.3 on 2014-12-15
Argyrochosma limitanea ssp. limitanea changed from 2B.3 to 2B.1 on 2014-11-24
Helianthus winteri added to 1B.2 on 2014-10-15
Pohlia flexuosa added to 2B.1 on 2014-10-10
Nemacladus tenuis var. tenuis added to PPD on 2014-10-08
Solidago lepida var. salebrosa added to 3.2 on 2014-10-01
Solidago gigantea changed from 2B.2 to CBR on 2014-10-01
Coptis laciniata changed from 2B.2 to 4.2 on 2014-09-30
Viburnum edule changed from 2B.1 to CBR on 2014-09-17
Bruchia bolanderi changed from 2B.2 to 4.2 on 2014-09-02
Anomobryum julaceum changed from 2B.2 to 4.2 on 2014-09-02
Polygala intermontana changed from 2B.3 to 2B.1 on 2014-07-30
Triteleia piutensis added to 1B.1 on 2014-07-24
Malacothamnus orbiculatus added to CBR on 2014-07-22
Calystegia sepium ssp. binghamiae changed from 1B.1 to 1A on 2014-07-17
Calystegia felix added to 3.1 on 2014-07-17
Calystegia vanzuukiae added to 1B.3 on 2014-07-16
Malacothamnus gracilis changed from 4.3 to 1B.1 on 2014-07-16

All Major Changes Since 6th Edition, 2001

Currently in Review

Rare Plant Status Review Forum | Forum Membership Information | Status Reviewer Form

Major Contributors
Additional Funding Provided by: Beatrice Harris \| LSA Associates \| Sapphos Environmental

Suggested Citation
CNPS, Rare Plant Program. . Inventory of Rare and Endangered Plants (online edition, v8-02). California Native Plant Society, Sacramento, CA. Website http://www.rareplants.cnps.org [accessed ].