Carex scabriuscula Calflora

Calflora, a 501c3 non-profit

Taxon Report

Carex scabriuscula Mack.

Siskiyou sedge

2014 Steve Matson

2018 Julie Kierstead Nelson

Carex scabriuscula is a perennial grasslike herb (rhizomatous) that is native to California, and also found in Oregon.

also called Carex gigas

California Rare Plant Rank: 4.3 (limited distribution).


	Plant Range Observation Search ~106 records in California Plant Characteristics one or more occurrences within a 7.5-minute quadrangle

Bloom Period

Photos on Calflora


Genus:	Carex
Family:	Cyperaceae
Category:	angiosperm
PLANTS group:	Monocot
Jepson eFlora section: monocot

Wetlands: Occurs usually in wetlands, occasionally in non wetlands

Ultramafic affinity: 6 - strict endemic

Habitat: seeps, meadows

Communities: Yellow Pine Forest, Red Fir Forest, wetland-riparian

Name Status:
Accepted by JEF + CNPS + PLANTS + POWO

Alternate Names:


JEF + CNPS + PLANTS	Carex gigas

Information about Carex scabriuscula from other sources


Nursery availability from CNPLX Commercial availability unknown. Jepson eFlora USDA PLANTS Profile (CASC14) Photos on Calflora Photos on CalPhotos Google Images Photos on iNaturalist ID Tips on PlantID.net	International Plants Names Index Search efloras.org (Flora of North America) Landscape information from Calscape BONAP Distribution Map CNPS Inventory: 4.3 Consortium of California Herbaria 2 Search the Native American Ethnobotany Database	Add an Observation Location Suitability Planting Guide Distribution by County
photos / record / common / links

Suggested Citation

Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2025. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/ (Accessed: 07/09/2025).