CNPS

CNPS Rare Plant Inventory



Taxon Details

Geothallus tuberosus

Campbell's liverwort

  View Report   Copy Link Calflora eFlora CCH CalPhotos iNaturalist
Photo of Geothallus tuberosus
© 2023 Nathan Taylor 		Photo of Geothallus tuberosus
© 2023 Nathan Taylor and CNPS 		Photo of Geothallus tuberosus
© 2023 Nathan Taylor

Taxon Summary:

Geothallus tuberosus, commonly known as Campbell's liverwort, is a ephemeral liverwort in the Sphaerocarpaceae that is found only in California. It occurs within Coastal scrub (mesic), and Vernal pools, growing at elevations from 10 to 600 meters. Geothallus tuberosus is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

  Classification

Scientific Name:
Geothallus tuberosus Campb.
Common Name:
Campbell's liverwort
Family: Sphaerocarpaceae
Element Code: NBHEP1C010
USDA Plants Symbol: GETU3
Synonyms/Other Names:
Name Status: JEF, FNA, POWO,
IPNI, Tropicos

  Conservation Status

CA Rare Plant Rank: 1B.1
Fed List: None
State List: None
Global Rank: G2
State Rank:
 S2
Other Status: IUCN_CR
CRPR Changes:
Add Date: 2001-01-01
Date Edited: 2022-01-05

  Ecology and Life History

Lifeform: ephemeral liverwort
Blooming Period:
JFMAMJJASOND
Elevation:
10 - 600 meters
35 - 1970 feet
General Habitats:
  • Coastal scrub (mesic)
  • Vernal pools
Microhabitat Details: soil
Microhabitat:

  Notes

Notes:
Most suitable historic habitat lost to urbanization. Need quads for RIV Co. Monotypic genus. See Botanical Gazette 21:13 (1896) for original description.
Threats:
Taxonomy:

  Threat List Data from the CNDDB

Threat List Total: 0
Total EOs % of EOs
EOs with Threat Listed: 0 %
THREAT LIST:

 

  Occurrence Data from the CNDDB

Total Occurrences: 12
Element Occurrence Ranks:
A B C D X U
0 0 0 0 0 12
Occurrence Status:
Historical >20 Years 5
Recent <=20 Years 7
Presence:
Presumed Extant 12
Possibly Extirpated 0
Presumed Extirpated 0

  Location

California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Riverside (RIV), San Diego (SDG)
Quads: Name (Quad Code)
Del Mar (3211782), Fallbrook (3311743), La Jolla (3211772), National City (3211761), Point Loma (3211762), Poway (3211781), Wildomar (3311753)
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

Go to top


Suggested Citation:
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 30 January 2025].
}