Species Details

Schoenus nigricans

black bog-rush

Download Report Calflora eFlora CCH CalPhotos

Classification

Scientific Name: Schoenus nigricans L.
Common Name: black bog-rush
Family:	Cyperaceae
Element Code:	PMCYP0P010
USDA Plants Symbol:	SCNI
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	2B.2
Fed List:	None
State List:	None
Global Rank:	G4
State Rank:	S2
Other Status:	IUCN_LC; USFS_S
CRPR Changes: changed from 2.2 to 2B.2 on 2013-06-12
Add Date:	2001-01-01
Date Edited:	2021-07-14

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Aug-Sep

Elevation:
150 - 2000 meters
490 - 6560 feet

General Habitats:

Marshes and swamps (often alkaline)

Microhabitat Details:

Microhabitat:

Notes

Notes: See Madroño 43(4):530 (1996) for information on CA distribution.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	5
	Total EOs	% of EOs
EOs with Threat Listed:	4	31 %
Non-native plant impacts	2	15%
ORV activity	1	7%
Road/trail construction/maint.	1	7%
Surface water diversion	1	7%
Groundwater pumping	1	7%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					13
A	B	C	D	X	U
2	0	0	0	0	11

Occurrence Status:
Historical >20 Years	8
Recent <=20 Years	5

Presence:
Presumed Extant	13
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA), Florida (FL), Nevada (NV), South America (SA), Texas (TX)

California Counties and Islands: Name (Code)
Inyo (INY), San Bernardino (SBD)

Quads: Name (Quad Code)
Cajon (3411734), Furnace Creek (3611647), Nevares Peak (3611657), Red Pass Lake Ne (3511643), San Bernardino North (3411723), Telegraph Peak (3411735), Ubehebe Crater (3711714)

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

CNPS Rare Plant Inventory