CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record malacothrix_similis - Wed, Dec. 1, 2021, 19:57 ET b
Malacothrix similis
common nameMexican malacothrix
CalPhotos image
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life formannual herb
CA Rare Plant Rank
List 2A
LIST 2A: Presumed extinct in California, but extant elsewhere.
state rank
SH     SH: presumed extinct in California
global rank
G2G3   G2G3: Intermediate between G2 and G3
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (7):
Oxnard (114B)* 3411922, Santa Cruz Island A (SCZA)?*, Santa Cruz Island B (SCZB)?*, Santa Cruz Island C (SCZC)?*, Santa Cruz Island D (SCZD)?*, San Miguel Island East (SMIE)?*, San Miguel Island West (SMIW)?*
quad data info

Counties, states, regions:
Santa Barbara (SBA)?*, Ventura (VEN)*, Baja California (BA)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Coastal dunes (CoDns)
blooming period Apr-May  
elevation range0 - 40 meters
Last seen in 1925 at Hueneme Beach in Ventura County. A synonym of Malacothrix stebbinsii in The Jepson Manual (1993). See Madrono 16: 262 (1962) for original description.
full nameMalacothrix similis W.S. Davis & Raven
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  MASI5 Element Code  PDAST660D0
CalFlora species this taxon    CalFlora genus related taxa
Jepson Online Jepson Interchange  Jepson Manual and other resources
Google search
search Google CNPS website    search Google entire web

Suggested citation: California Native Plant Society (CNPS). 2018. Inventory of Rare and Endangered Plants (online edition, v7-18mar). California Native Plant Society. Sacramento, CA. Accessed on Wed, Dec. 1, 2021 from

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