Page author: Hattie Palmer
Equisetum laevigatum
smooth scouring rush

Origin: Native

Conservation Status: Not of concern


Rhizomatous perennial with stems lasting less than a year, sometimes overwintering in southwestern United States, typically unbranched, 2-15 dm. tall, with single lines of stomates and 10-32 ridges; sheaths green and elongate, 7-15 mm long and 3-9 mm bread; teeth 10-32, articulate and typically shedding early with dark rim on sheath remaining.




Cone tip rounded; spores green and spheric.

Accepted Name:
Equisetum laevigatum A. Braun
Publication: Amer. J. Sci. Arts. 46: 87. 1844.

Synonyms & Misapplications:
Equisetum funstonii A.A. Eaton [Peck]
Equisetum kansanum J.H. Schaffn. [Peck]
Additional Resources:

PNW Herbaria: Specimen records of Equisetum laevigatum in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Equisetum laevigatum checklist entry.

E-Flora BC: Equisetum laevigatum atlas page.

CalPhotos: Equisetum laevigatum photos.

USDA Plants: Equisetum laevigatum information.

12 photographs:
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