Taxon Report

Carex petasata Dewey

Liddon's sedge

Print Report

©2019 Sierra Pacific Industries

Classification


Scientific Name:	Carex petasata Dewey
Common Name:	Liddon's sedge
Family:	Cyperaceae
Element Code:	PMCYP03AE0
USDA Plants Symbol:	CAPE7
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: May-Jul	May-Jul
Elevation:	600-3320 (1970-10895)
General Habitats:	Broadleafed upland forest, Lower montane coniferous forest, Meadows and seeps, Pinyon and juniper woodland
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	2B.3
Global Rank:	G5
State Rank:	S3
State List:	None
Fed List:	None
Other Status:
CRPR Changes:	changed from 2.3 to 2B.3 on 2013-06-12

Occurrence Data from the CNDDB


Total Occurrences:	73
Element Occurrence Ranks:
Excellent (A)	6
Good (B)	38
Fair (C)	9
Poor (D)	0
None (X)	0
Unknown (U)	20

Location


California Endemic: False
California Counties and Islands: Name (Code)
Alpine (ALP), Inyo (INY), Lassen (LAS), Modoc (MOD), Mono (MNO), Plumas (PLU), Shasta (SHA)
Quads: Name (Quad Code)
Antelope Mtn. (4012058), Bullard Lake (4012078), Champs Flat (4012068), Corders Reservoir (4012172), Eagle Peak (4112032), Emerson Peak (4112022), Fales Hot Springs (3811934), Harvey Mtn. (4012161), Heenan Lake (3811966), Jellico (4012173), Kearsarge Peak (3611873), Knox Mountain (4112026), Lake Annie (4112081), Lane Reservoir (4112017), Mahogany Ridge (4112055), Mammoth Mtn. (3711961), Pine Creek Valley (4012151), Poison Lake (4012162), Sheepshead (4012077), Spalding Tract (4012067), Straylor Lake (4012171), Surprise (4112054), Swain Mountain (4012141), Swains Hole (4012163), Topaz Lake (3811965), Twain (4012111)

Threat List Data from the CNDDB


Threat List Total:	12
EOs with Threat Listed:	Total EOs	% of EOs
	52	71 %
Grazing	37	50%
Logging	35	47%
Improper burning regime	10	13%
Recreational use (non-ORV)	7	9%
Foot traffic/trampling	6	8%
ORV activity	6	8%
Non-native plant impacts	3	4%
Other	2	2%
Wood cutting or brush clearing	2	2%
Altered flood/tidal/hydrologic regime	1	1%
Development	1	1%
Erosion/runoff	1	1%

Notes



Threatened by logging, grazing, and fire. Possibly threatened by vehicles.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 December 2024].