Taxon Report
Carex klamathensis B.L. Wilson & JanewayKlamath sedge |
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Taxon Summary
Carex klamathensis, commonly known as Klamath sedge, is a perennial rhizomatous herb in the Cyperaceae that is found in California and elsewhere. It occurs within Chaparral, Cismontane woodland, and Meadows and seeps, growing at elevations from 1000 to 1140 meters. Carex klamathensis is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.Classification
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Scientific Name: |
Carex klamathensis B.L. Wilson & Janeway |
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Common Name: |
Klamath sedge |
| Family: | Cyperaceae |
| Element Code: | PMCYP03L70 |
| USDA Plants Symbol: | CAKL |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial rhizomatous herb |
| Blooming Period: | |
| Elevation: | 1000-1140 (3280-3740) |
| General Habitats: | Chaparral, Cismontane woodland, Meadows and seeps |
| Microhabitat: | Serpentine |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G2 |
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State Rank: |
S1 |
| State List: | None |
| Fed List: | None |
| Other Status: | BLM_S; SB_UCSC |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 3 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 0 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 3 |
| California Endemic: False | |
| California Counties and Islands: Name (Code) | |
| Colusa (COL), Lake (LAK), Tehama (TEH) | |
| Quads: Name (Quad Code) | |
| Hough Springs (3912225), Raglin Ridge (4012216) | |
Threat List Data from the CNDDB
| Threat List Total: | 0 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 0 | % | |
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Selected References
| Proposed New Add to Rank 1B.2, G2 / S1.2 (2008) |
| J. Bot. Res. Inst. Texas 1(1): 69-77 (2007) |
| Carex klamathensis profile for potential Species of Conservation Concern evaluation (2018) |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 15 November 2025].