
NatureServe Explorer Species Reports — NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.
ITIS Reports — ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.
FWS Digital Media Library — The U.S. Fish and Wildlife Service’s National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.
| Status | Date Listed | Lead Region | Where Listed | 
|---|---|---|---|
| Endangered | 01/29/1997 | California/Nevada Region (Region 8) | Wherever found | 
To learn more about critical habitat please see http://ecos.fws.gov/crithab
| 09/30/1999 | Recovery Plan for Six Plants from the Mountains Surrounding the Los Angeles Basin | View Implementation Progress | Final | 
| 09/30/1999 | Recovery Plan for Six Plants from the Mountains Surrounding the Los Angeles Basin | View Implementation Progress | Final | 
| 04/27/2012 | 77 FR 25112 25116 | 5-Year Reviews of Species in California and Nevada | 
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| 03/25/2009 | 74 FR 12878 12883 | Initiation of 5-Year Reviews of 58 Species in California, Nevada, Arizona, and Utah; Availability of Completed 5-Year Reviews in California and Nevada | 
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| 02/14/2007 | 72 FR 7064 7084 | Initiation of 5-Year Reviews of 58 Species in California and Nevada; Availability of Completed 5-Year Reviews in California and Nevada | 
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| 09/30/2008 | Lyon's Pentachaeta 5-Year Review | 
