Species Details

Jaffueliobryum raui

Rau's jaffueliobryum moss

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Photo of Jaffueliobryum raui
© 2021 Scot Loring
Photo of Jaffueliobryum raui
©2021 Scot Loring
Photo of Jaffueliobryum raui
©2021 Scot Loring
Scientific Name:
Jaffueliobryum raui (Austin) Thériot
Common Name:
Rau's jaffueliobryum moss
Family: Grimmiaceae
Element Code: NBMUS97010
USDA Plants Symbol: JARA
Synonyms/Other Names:
Lifeform: moss
Blooming Period:
490 - 2100 meters
1610 - 6890 feet
General Habitat:
  • Alpine dwarf scrub
  • Chaparral
  • Mojavean desert scrub
  • Sonoran desert scrub
General Micro Habitat:
Micro Habitat:
  • Carbonate
  • Dry
  • Openings
  • Rock crevices
Discovered in California by J. A. Harpel in 1980.

Potentially threatened by vehicles. Possibly threatened by road or trail construction and maintenance, and mining.


Similar to J. wrightii.

Total Occurrences: 7
Element Occurrence Ranks:
0 0 1 0 0 6
Occurrence Status:
Historical >20 Years 5
Recent <=20 Years 2
Presumed Extant 7
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
Arizona (AZ), California (CA), Colorado (CO), Iowa (IA), Kansas (KS), Minnesota (MN), Montana (MT), Nebraska (NE), Nevada (NV), New Mexico (NM), Oklahoma (OK), South Dakota (SD), Texas (TX), Utah (UT), Wisconsin (WI), Wyoming (WY)
California Counties and Islands: Name (Code)
Inyo (INY), Mendocino (MEN), Riverside (RIV), San Bernardino (SBD), Tehama (TEH)
Quads: Name (Quad Code)
Butterfly Peak (3311655), Clark Lake NE (3311643), Greenwater Canyon (3611625), Horn Spring (3411427), Indian Cove (3411612), Martinez Mtn. (3311653), Mendocino Pass (3912278), Savahia Peak SW (3411436), Vidal Nw (3411426)
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.


Presumed Extant
Counties   Quads
CNPS Status Review:
Proposed Addition to California Rare Plant Rank 2B.3, G4? / S2?
Taxonomic Treatment: Memoirs of the New York Botanical Garden 45:691-708 (1987)
Species Account: Jaffueliobryum raui profile for potential Species of Conservation Concern evaluation (2018)
Other: Madroño 46(4):215 (1999) [CA Discovery Information]