CNPS

CNPS Rare Plant Inventory

Species Details

Crossosoma californicum

Catalina crossosoma

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  Classification

Scientific Name:
Crossosoma californicum Nutt.
Common Name:
Catalina crossosoma
Family: Crossosomataceae
Element Code: PDCRO02020
USDA Plants Symbol: CRCA4
Synonyms/Other Names:

  Conservation Status

CA Rare Plant Rank: 1B.2
Fed List: None
State List: None
Global Rank: G3
State Rank:
 S3
Other Status: SB_CalBG/RSABG
CRPR Changes:
Add Date: 1980-01-01
Date Edited: 2021-11-05

  Ecology and Life History

Lifeform: perennial deciduous shrub
Blooming Period: Feb-May
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Elevation:
0 - 500 meters
0 - 1640 feet
General Habitats:
  • Chaparral
  • Coastal scrub
Microhabitat Details:
Microhabitat:
  • Rocky

  Notes

Notes:
Threatened by development. Recovering well on SCM Isl. See Aliso 9:171-178 (1978) for taxonomic treatment.
Threats:
Taxonomy:

  Threat List Data from the CNDDB

Threat List Total: 8
Total EOs % of EOs
EOs with Threat Listed: 6 8 %
THREAT LIST:
Development 4 5%
Erosion/runoff 1 1%
Foot traffic/trampling 1 1%
Non-native animal impacts 1 1%
Non-native plant impacts 1 1%

  Occurrence Data from the CNDDB

Total Occurrences: 80
Element Occurrence Ranks:
A B C D X U
4 4 2 1 0 69
Occurrence Status:
Historical >20 Years 27
Recent <=20 Years 53
Presence:
Presumed Extant 80
Possibly Extirpated 0
Presumed Extirpated 0

  Location

California Endemic:
California Island:
States: Name (Code)
California (CA), Isla Guadalupe, Baja (GU)
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), San Pedro (3311863), Santa Catalina East (3311833), Santa Catalina North (3311844), Santa Catalina South (3311834), Santa Catalina West (3311845)
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.
Regional Map

  Map

Presumed Extant
Click on quad for name. Hold Shift Key to use mouse scroll wheel

  Selected References

Suggested Citation:
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5). Website https://www.rareplants.cnps.org [accessed 16 April 2024].