Taxon Report

Sidalcea neomexicana Gray

salt spring checkerbloom

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Taxon Summary

Sidalcea neomexicana, commonly known as salt spring checkerbloom, is a perennial herb in the Malvaceae that is found in California and elsewhere. It occurs within Chaparral, Coastal scrub, Lower montane coniferous forest, Mojavean desert scrub, and Playas, growing at elevations from 15 to 1530 meters. Sidalcea neomexicana is ranked 2B.2, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Moderately threatened in California.

  Classification
Scientific Name:
 Sidalcea neomexicana Gray
Common Name:
 salt spring checkerbloom
Family: Malvaceae
Element Code: PDMAL110J0
USDA Plants Symbol: SINE3
Synonyms/Other Names:

Ecology and Life History
Lifeform: perennial herb
Blooming Period: Mar-Jun Mar-Jun
Elevation: 15-1530 (50-5020)
General Habitats: Chaparral, Coastal scrub, Lower montane coniferous forest, Mojavean desert scrub, Playas
Microhabitat: Alkaline, Mesic
Microhabitat Details:

Conservation Status
CA Rare Plant Rank: 2B.2
Global Rank: G4
State Rank:
 S2
State List: None
Fed List: None
Other Status: USFS_S
CRPR Changes:
  • changed from 2.2 to 2B.2 on 2013-06-12

Occurrence Data from the CNDDB
Total Occurrences: 30
Element Occurrence Ranks:
   Excellent (A) 0
   Good (B) 1
   Fair (C) 0
   Poor (D) 0
   None (X) 8
   Unknown (U) 21

Location
California Endemic:  False
California Counties and Islands: Name (Code)
Kern (KRN), Los Angeles (LAX)*, Orange (ORA), Riverside (RIV), San Bernardino (SBD), San Diego (SDG), Ventura (VEN)
Quads: Name (Quad Code)
Alamo Mountain (3411868), Anaheim (3311778), Beverly Hills (3411814), Canada Gobernadora (3311755), Cuddy Valley (3411971), Cuyamaca Peak (3211685), Del Mar (3211782), Forest Falls (3411618), Harrison Mtn. (3411722), Hollywood (3411813), Inglewood (3311883), Julian (3311615), La Jolla (3211772), Lake Hughes (3411864), Lakeview (3311771), Lockwood Valley (3411961), Los Alamitos (3311871)*, Los Angeles (3411812), Lucerne Valley (3411648), Matilija (3411943), Newport Beach (3311768), Oceanside (3311724), Ontario (3411716)*, Orange (3311777), Pasadena (3411822), Pechanga (3311741), Prado Dam (3311786), Queen Mtn. (3411611), Reyes Peak (3411963), San Bernardino South (3411713), San Luis Rey (3311723), Santiago Peak (3311765), Sawmill Mountain (3411972), Topanga (3411815), Tustin (3311767)*, Twentynine Palms (3411621), Venice (3311884), Yucaipa (3411711)

Threat List Data from the CNDDB

Threat List Total: 1
EOs with Threat Listed: Total EOs % of EOs
10 33 %
Development 10 33%

Notes
See University of Washington Publications in Biology 18:1-96 (1957) for taxonomic treatment.
Threats:
Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 9 February 2025].