Taxon  Report   3023    
Equisetum hyemale  L.  ssp. affine  (Engelm.) Calder & Roy L. Taylor
Giant scouring rush
Equisetum hyemale ssp. affine, a pteridophyte, is a fern that is native to California, and is also found elsewhere in North America and beyond.
Genus: Equisetum
Parent: Equisetum hyemale
Wetlands: Occurs usually in wetlands, occasionally in non wetlands

Habitat: streambanks

Communities: Yellow Pine Forest, Foothill Woodland, Chaparral, Valley Grassland, (many plant communities), wetland-riparian

Name Status:
Accepted by JEF

PLANTS other name:
Equisetum hyemale var. affine

Alternate Names:
JEF: Equisetum hyemale var. californicum
JEF: Equisetum hyemale var. robustum
ICPN: Equisetum hyemale var. affine
More information about  Equisetum hyemale ssp. affine
Nursery availability from CNPLX
This plant is available commercially.
Jepson eFlora


Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2020. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Apr 01, 2020).