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

Malacothamnus niveus changed from 4.3 to CBR on 2014-06-12
Plagiobryoides vinosula added to 4.2 on 2014-06-11
Orthotrichum holzingeri added to 1B.3 on 2014-06-11
Nardia hiroshii added to 2B.3 on 2014-06-02
Meesia longiseta added to 2B.3 on 2014-05-23
Grimmia vaginulata changed from 2B.1 to 1B.1 on 2014-05-21
Jaffueliobryum wrightii added to 2B.3 on 2014-05-15
Jaffueliobryum raui added to 2B.3 on 2014-05-15
Grimmia torenii added to 1B.3 on 2014-05-14
Didymodon californicus added to 4.2 on 2014-05-14
Coscinodon arctolimnius ssp. higuchi added to 4.2 on 2014-05-14
Climacium dendroides added to 2B.1 on 2014-05-05
Bryum chryseum added to 4.3 on 2014-05-05
Berberis haematocarpa added to CBR on 2014-05-05
Berberis higginsiae changed from CBR to 3.2 on 2014-05-05
Berberis fremontii changed from 3 to 2B.3 on 2014-05-05
Plagiobothrys collinus var. ursinus added to CBR on 2014-04-30
Dudleya cymosa ssp. ovatifolia changed from 1B.2 to 1B.1 on 2014-04-30
Dudleya verityi changed from 1B.2 to 1B.1 on 2014-04-23
Usnea longissima changed from 4.3 to 4.2 on 2014-04-08
Limnanthes douglasii ssp. ornduffii added to 1B.1 on 2014-03-25
Thamnolia vermicularis added to 2B.1 on 2014-03-01
Texosporium sacti-jacobi added to 3 on 2014-03-01
Sulcaria isidiifera added to 1B.1 on 2014-03-01
Solorina spongiosa added to 2B.2 on 2014-03-01
Ramalina thrausta added to 2B.1 on 2014-03-01
Peltigera gowardii added to 4.2 on 2014-03-01
Mobergia calculiformis added to 3 on 2014-03-01
Hypogymnia schizidiata added to 1B.3 on 2014-03-01
Graphis saxorum added to 3 on 2014-03-01
Cladonia firma added to 2B.1 on 2014-03-01
Calicium adspersum added to 2B.2 on 2014-03-01
Bryoria spiralifera added to 1B.1 on 2014-02-28
Polemonium eddyense added to 1B.2 on 2014-02-21
Bryoria pseudocapillaris added to 3.2 on 2014-02-18
Racomitrium aquaticum added to CBR on 2014-02-12
Ptychostomum pacificum added to CBR on 2014-02-12
Porotrichum bigelovii added to CBR on 2014-02-12
Orthodontium gracile added to CBR on 2014-02-12
Imbribryum mildeanum added to CBR on 2014-02-12
Grimmia serrana added to CBR on 2014-02-12
Didymodon eckeliae added to CBR on 2014-02-12
Archidium alternifolium added to CBR on 2014-02-12
Ceanothus roderickii changed from 1B.2 to 1B.1 on 2014-01-30
Draba longisquamosa added to CBR on 2014-01-23
Solidago guiradonis changed from 4.2 to 4.3 on 2014-01-22
Lagophylla diabolensis added to 1B.2 on 2014-01-22
Lupinus guadalupensis changed from 1B.2 to 4.2 on 2014-01-22
Monardella sinuata ssp. nigrescens added to 1B.2 on 2014-01-03
Monardella sinuata ssp. sinuata added to 1B.2 on 2014-01-03
Monardella undulata changed from 4.2 to CBR on 2014-01-03

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 ].