Species Details

Carex arcta

northern clustered sedge

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Classification

Scientific Name: Carex arcta Boott
Common Name: northern clustered sedge
Family:	Cyperaceae
Element Code:	PMCYP030X0
USDA Plants Symbol:	CAAR2
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	2B.2
Fed List:	None
State List:	None
Global Rank:	G5
State Rank:	S1
Other Status:	IUCN_LC
CRPR Changes: changed from 2.2 to 2B.2 on 2013-06-12
Add Date:	2001-01-01
Date Edited:	2023-06-06

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Jun-Sep

Elevation:
60 - 1400 meters
195 - 4595 feet

General Habitats:

Bogs and fens
North Coast coniferous forest (mesic)

Microhabitat Details:

Microhabitat:

Notes

Notes: Does plant occur in MEN Co.?
Threats: Possibly threatened by logging.
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	6
	Total EOs	% of EOs
EOs with Threat Listed:	8	62 %
Logging	7	53%
Other	3	23%
Road/trail construction/maint.	2	15%
Foot traffic/trampling	2	15%
Grazing	1	7%
Altered flood/tidal/hydrologic regime	1	7%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					13
A	B	C	D	X	U
1	2	5	0	0	5

Occurrence Status:
Historical >20 Years	4
Recent <=20 Years	9

Presence:
Presumed Extant	13
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
Alaska (AK), California (CA), Idaho (ID), Maine (ME), Michigan (MI), Minnesota (MN), Montana (MT), New Hampshire (NH), New York (NY), Oregon (OR), Vermont (VT), Washington (WA), Wisconsin (WI)

California Counties and Islands: Name (Code)
Del Norte (DNT), Humboldt (HUM)

Quads: Name (Quad Code)
Arcata North (4012481), Board Camp Mtn. (4012366), Crescent City (4112472), Eureka (4012472), Garberville (4012317), Lord-ellis Summit (4012387), Mad River Buttes (4012367), Maple Creek (4012377), Owl Creek (4012358), Redcrest (4012348)

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

Species Account:

Carex arcta profile for potential Species of Conservation Concern evaluation (2018)