Taxon Report

Malacothamnus clementinus (Munz & Jtn.) Kearn.

San Clemente Island bushmallow

Print Report


© 2011 Dylan Neubauer

  Classification
Scientific Name:
 Malacothamnus clementinus (Munz & Jtn.) Kearn.
Common Name:
 San Clemente Island bushmallow
Family: Malvaceae
Element Code: PDMAL0Q030
USDA Plants Symbol: MACL
Synonyms/Other Names:

Ecology and Life History
Lifeform: perennial deciduous shrub
Blooming Period: Mar-Aug Mar-Aug
Elevation: 10-275 (35-900)
General Habitats: Valley and foothill grassland
Microhabitat:
Microhabitat Details:

Conservation Status
CA Rare Plant Rank: 1B.1
Global Rank: G2G3
State Rank:
 S2S3
State List: CE
Fed List: FD
Other Status: SB_CalBG/RSABG; SB_SBBG
CRPR Changes:

Occurrence Data from the CNDDB
Total Occurrences: 16
Element Occurrence Ranks:
   Excellent (A) 0
   Good (B) 2
   Fair (C) 0
   Poor (D) 0
   None (X) 0
   Unknown (U) 14

Location
California Endemic:  True
California Counties and Islands: Name (Code)
Los Angeles (LAX)
Quads: Name (Quad Code)
San Clemente Island Central (3211874), San Clemente Island North (3211885), San Clemente Island South (3211873)

Threat List Data from the CNDDB

Threat List Total: 3
EOs with Threat Listed: Total EOs % of EOs
2 13 %
Erosion/runoff 1 6%
Military operations 1 6%
Vandalism/dumping/litter 1 6%

Notes
Federally listed as Endangered on 1977-09-12; Delisted due to Recovery on 2023-02-24. Feral herbivores removed from SCM Isl., and vegetation recovering. See Bulletin of the Torrey Botanical Club 51:296 (1924) for original description, and Leaflets of Western Botany 6(6):127-128 (1951) for revised nomenclature.
Threats:
Threatened by Navy activities.
Taxonomy:

Selected References

Recovery Plan for Malacothamnus clementinus (San Clemente Island bush-mallow) (USFWS 1984) 
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 10 January 2025].