Vascular Plants - Equisetaceae - Equisetum:
Equisetum variegatum
Page Author: Don Knoke
variegated scouring-rush, Alaskan scouring-rush 
Habit: herb
Duration: perennial
Origin: Native
Distribution: Alaska to Oregon, east across southern Canada and the northern third of the United States
Habitat: Wet places, sea level to alpine
Species Description:

General: Stems evergreen, perennial, from black, smooth rhizomes, all alike, ascending or erect, 1-3 dm. tall and 1-2 mm. thick, branched near the base; stems 5-to 12-ridged, the ridges very shallow; stomates in 2 rows in each furrow, sunken below the level of the epidermis; central cavity 1/4 to 1/3 the diameter of the stem; sheaths 2-4 mm. long, green with black tips, the teeth with conspicuous white margins, abruptly contracted to a hair-like tip.
Leaves: None.
Spores: Cones small, up to 1 cm. long, sharp pointed.
Subspecies & Varieties:
Accepted Name:
Equisetum variegatum Schleich. ex F. Weber & D. Mohr
Synonyms:
(none)

Treated in Flora of the PNW as:
Equisetum variegatum
Additional Resources:

PNW Herbaria Specimens: View list of all Equisetum variegatum specimens in the Consortium of Pacific Northwest Herbaria database.

WTU Herbarium Specimens: View list of Equisetum variegatum specimens in the WTU Herbarium database.

Washington Flora Checklist: Equisetum variegatum treatment.

E-Flora BC: Equisetum variegatum atlas page.

CalPhotos: Equisetum variegatum images.

USDA Plants Database: Equisetum variegatum.
Additional photographs of Equisetum variegatum:
(click on a thumbnail to view larger photo)

Ben Legler, 2004

Ben Legler, 2004

Robert L. Carr, 2011

Robert L. Carr, 2011

Robert L. Carr, 2011

Robert L. Carr, 2011

Robert L. Carr, 2011

Robert L. Carr, 2011
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Washington Native Plant Society
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