''Sphaerocarpos drewiae'' is a species of

liverwort Liverworts are a group of non-vascular land plants forming the division Marchantiophyta (). They may also be referred to as hepatics. Like mosses and hornworts, they have a gametophyte-dominant life cycle, in which cells of the plant carry ...

in the family

Sphaerocarpaceae Sphaerocarpaceae is a Family (biology), family of liverworts known as bottle liverworts. Approximately ten species are included in this family, most of them in the genus ''Sphaerocarpos'', but one additional species in the genus ''Geothallus''. ...

. It is

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

, where it is known from

San Diego San Diego ( , ) is a city on the Pacific coast of Southern California, adjacent to the Mexico–United States border. With a population of over 1.4 million, it is the List of United States cities by population, eighth-most populous city in t ...

and Riverside Counties. Its common name is bottle liverwort.''Sphaerocarpus drewei''.
CNPS, Rare Plant Program. 2015. Inventory of Rare and Endangered Plants (online edition, v8-02). California Native Plant Society. Accessed 31 August 2015. This liverwort grows in shady spots in

coastal sage scrub Coastal sage scrub, also known as coastal scrub, CSS, or soft chaparral, is a low scrubland plant community of the California coastal sage and chaparral subecoregion, found in coastal California and northwestern coastal Baja California. It is ...

habitat. It is associated with another rare endemic liverwort, ''

Geothallus tuberosus ''Geothallus'' is a monotypic genus of liverwort in the family Sphaerocarpaceae family. It includes only the single species ''Geothallus tuberosus''. Its common name is Campbell's liverwort. It is endemic to California, where it is known only fro ...

''. Much of its habitat is near urbanized areas and it is threatened with habitat loss. The name has occasionally been misspelled in the literature as ''Sphaerocarpos drewei''

References

Sphaerocarpales Endemic flora of California Bryophyta of North America Natural history of the California chaparral and woodlands Natural history of Riverside County, California Natural history of San Diego County, California Natural history of the Peninsular Ranges Taxonomy articles created by Polbot Taxobox binomials not recognized by IUCN {{moss-stub