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Carex infirminervia

Naczi

Weak-nerved Sedge

G5Secure Found in 5 roadless areas NatureServe Explorer →

G5SecureGlobal Rank

Identity

Unique IDELEMENT_GLOBAL.2.637470

Element CodePMCYP03L40

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryVascular Plant

Endemicoccurs (regularly, as a native taxon) in multiple nations

KingdomPlantae

PhylumAnthophyta

ClassMonocotyledoneae

OrderCyperales

FamilyCyperaceae

GenusCarex

Other Common Names

Carex à nervures faibles (FR)

Concept Reference

Naczi, R.F.C., C.T. Bryson, and T.S. Cochrane. 2002. Seven new species and one new combination in Carex (Cyperaceae) from North America. Novon 12: 508-532

Taxonomic Comments

Carex infirminervia was described in 2002 (Naczi et al. 2002). Most collections of C. infirminervia bear original identifications of C. bolanderi, C. leptopoda, or C. deweyana (Naczi et al. 2002). C. infirminervia is sympatric with C. bolanderi over much of their ranges (Naczi et al. 2002), and portions of the range of C. infriminervia also overlap parts of the ranges of C. leptopoda and C. deweyana (Naczi et al. 2002).

Conservation Status

Rank MethodExpertise without calculation

Review Date2019-10-19

Change Date2007-07-06

Edition Date2003-01-30

Edition AuthorsOlivero, A.

Rank Reasons

Widespread but infrequent (Naczi et al. 2002). Ranges from southwestern Alberta and central British Columbia south to northern Colorado and west to central California (Naczi et al. 2002). Usually occurs in woodlands and woodland edges (Naczi et al. 2002).

Ecology & Habitat

Other Nations (2)

CanadaN5

Province	Rank	Native
British Columbia	S4	Yes
Alberta	S1	Yes

United StatesNNR

Province	Rank	Native
Idaho	SNR	Yes
Wyoming	S2	Yes
Colorado	S2	Yes
Montana	SNR	Yes
Washington	SNR	Yes
Nevada	SNR	Yes
Utah	SNR	Yes
Oregon	SNR	Yes
California	SNR	Yes

Plant Characteristics

Economic Value (Genus)No

Roadless Areas (5)

California (1)

Area	Forest	Acres
Middle Yuba	Tahoe National Forest	7,379

Oregon (1)

Area	Forest	Acres
Mt. Bailey	Umpqua National Forest	18,401

Washington (3)

Area	Forest	Acres
Glacier Peak B	Mt Baker-Snoqualmie National Forest	19,328
Glacier Peak L	Mt Baker-Snoqualmie National Forest	14,084
Grassy Top	Idaho Panhandle National Forests	13,485

References (2)

Flora of North America Editorial Committee (FNA). 2002b. Flora of North America north of Mexico. Vol. 23. Magnoliophyta: Commelinidae (in part): Cyperaceae. Oxford Univ. Press, New York. xxiv + 608 pp.
Naczi, R.F.C., C.T. Bryson, and T.S. Cochrane. 2002. Seven new species and one new combination in Carex (Cyperaceae) from North America. Novon 12: 508-532