Species Details

Buxbaumia viridis

green shield-moss

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Classification

Scientific Name: Buxbaumia viridis (DC.) Moug. & Nestl.
Common Name: green shield-moss
Family:	Buxbaumiaceae
Element Code:	NBMUS1B040
USDA Plants Symbol:	BUVI2
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	2B.2
Fed List:	None
State List:	None
Global Rank:	G5?
State Rank:	S2
Other Status:	BLM_S; USFS_S
CRPR Changes: changed from 2.2 to 2B.2 on 2013-06-12 added to 2.2 on 2011-03-23
Add Date:	2011-03-23
Date Edited:	2024-10-02

Ecology and Life History

Lifeform: moss

Blooming Period:

Elevation:
975 - 2200 meters
3200 - 7220 feet

General Habitats:

Lower montane coniferous forest
Subalpine coniferous forest
Upper montane coniferous forest

Microhabitat Details: Fallen, decorticated wood or humus

Microhabitat:

Notes

Notes: Threatened by trampling, logging, and hydrological alterations; potentially threatened by gold mining; and possibly threatened by recreational activities. Similar to B. aphylla.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	8
	Total EOs	% of EOs
EOs with Threat Listed:	5	56 %
Altered flood/tidal/hydrologic regime	3	33%
Foot traffic/trampling	3	33%
Other	3	33%
Logging	2	22%
Mining	1	11%
Recreational use (non-ORV)	1	11%
Grazing	1	11%
Erosion/runoff	1	11%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					9
A	B	C	D	X	U
0	0	2	2	0	5

Occurrence Status:
Historical >20 Years	3
Recent <=20 Years	6

Presence:
Presumed Extant	9
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA), Colorado (CO), Idaho (ID), Montana (MT), Washington (WA), Wyoming (WY)

California Counties and Islands: Name (Code)
Del Norte (DNT), Humboldt (HUM), Modoc (MOD), Plumas (PLU), Trinity (TRI), Yuba (YUB)

Quads: Name (Quad Code)
American House (3912161), Board Camp Mtn. (4012366), Davis Creek (4112063), Hayfork Bally (4012362), Mt. Bidwell (4112082), Polar Bear Mtn. (4112385), Strawberry Valley (3912151)

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

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Selected References

CNPS Status Review:	Proposed Addition to CRPR 2.2, G3G4 / S2 (2011)
Species Account:	Buxbaumia viridis account for potential Species of Conservation Concern evaluation (2021)