Taxon Report

Lewinskya holzingeri (Renauld & Cardot) F. Lara, Garilleti & Goffinet

Holzinger's bristle moss

Print Report

Taxon Summary

Lewinskya holzingeri, commonly known as Holzinger's bristle moss, is a moss in the Orthotrichaceae that is found in California and elsewhere. It occurs within Cismontane woodland, Lower montane coniferous forest, Pinyon and juniper woodland, and Upper montane coniferous forest, growing at elevations from 715 to 1800 meters. Lewinskya holzingeri is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.

Classification


Scientific Name:	Lewinskya holzingeri (Renauld & Cardot) F. Lara, Garilleti & Goffinet
Common Name:	Holzinger's bristle moss
Family:	Orthotrichaceae
Element Code:	NBMUS560E0
USDA Plants Symbol:
Synonyms/Other Names:	Orthotrichum holzingeri

Ecology and Life History


Lifeform:	moss
Blooming Period:
Elevation:	715-1800 (2345-5905)
General Habitats:	Cismontane woodland, Lower montane coniferous forest, Pinyon and juniper woodland, Upper montane coniferous forest
Microhabitat:
Microhabitat Details:	Usually on rock in and along streams, rarely on tree limbs

Conservation Status


CA Rare Plant Rank:	1B.3
Global Rank:	G3G4
State Rank:	S2
State List:	None
Fed List:	None
Other Status:
CRPR Changes:	added to 1B.3 on 2014-06-03

Occurrence Data from the CNDDB


Total Occurrences:	7
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	7

Location


California Endemic: False
California Counties and Islands: Name (Code)
Amador (AMA), Calaveras (CAL), Modoc (MOD), Siskiyou (SIS), Tulare (TUL), Tuolumne (TUO)
Quads: Name (Quad Code)
Ackerson Mtn. (3711977), Bear River Reservoir (3812052), Calaveras Dome (3812042), Giant Forest (3611857), Iron Gate Reservoir (4112284), Lake McCloud (4112221), Pothole Valley (4112078), Scott Mountain (4112236)

Threat List Data from the CNDDB


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

Notes



California plants previously identified as Orthotrichum holzingeri are now placed in the genus Lewinskya. Similar to L. laevigata.
Threats:
Possibly threatened by recreational activities, trail and road construction, and hydrological alterations.
Taxonomy:

Selected References

Proposed Addition to CRPR 1B.3, G3 / S2 (2014)

Proposed Non-Substantive Name Change (2023)

Contributions from the United States National Herbarium 3(4):270 (1895)

Cryptogamie, Bryologie 37(4): 361–382 (2016)

Lewinskya holzingeri account for potential Species of Conservation Concern evaluation (2023)

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 19 November 2025].