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

Mimulus whipplei changed from 1A to 1B.1 on 2016-08-29
Eremalche parryi ssp. kernensis changed from 1B.1 to 1B.2 on 2016-08-26
Smilax jamesii changed from 1B.3 to 4.2 on 2016-08-26
Rosa woodsii var. glabrata added to 1B.1 on 2016-08-26
Streptanthus tortuosus ssp. truei added to 1B.1 on 2016-07-21
Mimulus puniceus added to CBR on 2016-07-20
Mimulus bolanderi added to CBR on 2016-07-20
Mimulus androsaceus added to CBR on 2016-07-20
Nemophila humifusa added to CBR on 2016-07-14
Toxicoscordion fremontii var. minor added to CBR on 2016-07-14
Mimulus sookensis added to CBR on 2016-07-13
Mimulus platycalyx added to CBR on 2016-07-13
Micranthes marshallii added to 4.3 on 2016-07-06
Saxifraga rufidula changed from 2B.3 to CBR on 2016-07-06
Ceanothus decornutus added to 1B.2 on 2016-06-16
Carex xerophila added to 1B.2 on 2016-06-16
Streptanthus fenestratus changed from 1B.2 to 1B.1 on 2016-06-09
Heterotheca monarchensis changed from 1B.3 to 1B.1 on 2016-06-09
Gilia yorkii changed from 1B.2 to 1B.1 on 2016-06-09
Eriogonum ovalifolium var. monarchense changed from 1B.3 to 1B.1 on 2016-06-09
Deinandra bacigalupii changed from 1B.2 to 1B.1 on 2016-06-09
Navarretia paradoxinota added to 1B.3 on 2016-05-02
Navarretia paradoxiclara added to 1B.3 on 2016-05-02
Juncus tiehmii added to CBR on 2016-04-13
Spermolepis gigantea changed from 2B.3 to 2B.1 on 2016-03-22
Lycium brevipes var. hassei changed from 1B.1 to 3.1 on 2016-03-22
Penstemon sudans changed from 1B.3 to 1B.2 on 2016-03-17

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 ].