Taxon Report

Malacothrix indecora Greene

Santa Cruz Island malacothrix

Print Report



  Classification

Scientific Name:
Malacothrix indecora Greene
Common Name:
Santa Cruz Island malacothrix
Family: Asteraceae
Element Code: PDAST660J0
USDA Plants Symbol: MAIN2
Synonyms/Other Names:

Ecology and Life History

Lifeform: annual herb
Blooming Period: Apr-Sep Apr-Sep
Elevation: 5-30 (15-100)
General Habitats: Chaparral, Coastal bluff scrub, Coastal dunes, Coastal scrub
Microhabitat: Rocky
Microhabitat Details:

Occurrence Data from the CNDDB

Total Occurrences: 7
Element Occurrence Ranks:
   Excellent (A) 0
   Good (B) 4
   Fair (C) 0
   Poor (D) 0
   None (X) 0
   Unknown (U) 3
California Endemic:  True
California Counties and Islands: Name (Code)
Santa Barbara (SBA)
Quads: Name (Quad Code)
San Miguel Island East (3312083), Santa Cruz Island A (3311987), Santa Cruz Island B (3311986)*, Santa Cruz Island C (3311985), Santa Rosa Island North (3312081)

Threat List Data from the CNDDB

Threat List Total: 3
EOs with Threat Listed: Total EOs % of EOs
6 86 %
Erosion/runoff 6 85%
Non-native plant impacts 6 85%
Foot traffic/trampling 3 42%

Notes

Known from fewer than ten occurrences. Threatened by feral herbivores, and possibly by erosion. See Bulletin of the California Academy of Sciences 2:152 (1886) for original description, and MadroƱo 44(3):223-244 (1997) for taxonomic treatment.
Threats:
Taxonomy:
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 8 January 2025].