Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across most of North America to the Atlantic Coast.
Habitat: Moist to wet areas, lowlands to moderate elevations in the mountains
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Rhizomatous, evergreen perennial, the stems all alike, mostly unbranched, 2-15 dm. tall and 4-14 mm. thick, with 18-40 ridges, each ridge with 2 rows of tubercles; central cavity at least 3/4 the diameter of the stem; stomates in 2 lines in each furrow; sheaths 5-15 mm. long, black banded at the tip and also with a lower black band, ashy- gray between the black bands, green below the lower band.
None
Cones short-pedunculate, 1-2.5 cm. long, sharp pointed.
Publication: Sp. Pl. 2: 1062. 1753.
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ssp. affine – common scouring rush, Dutch scouring rush, prairie scouring rush
Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across most of North America to the Atlantic Coast.
PNW Herbaria: Specimen records of Equisetum hyemale in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Equisetum hyemale checklist entry.
OregonFlora: Equisetum hyemale information.
E-Flora BC: Equisetum hyemale atlas page.
CalPhotos: Equisetum hyemale photos.
USDA Plants: Equisetum hyemale information.
