Variegated horsetail
Equisetum variegatum Schleich. ex F. Weber et D. Mohr
Chisimahimedokusa (チシマヒメドクサ, 千島姫木賊)
Lifeform: evergreen perennial horsetail < 40 (80) cm in height
Morophology: highly variable (often misidentified)
- subsp. variegatum
- subsp. alaskanum (A. A. Eaton) Hulten
Habitats: wetlands, including river banks and lake shores, and wet subalpinezone
Distribution: Hokkaido (widespread in the Northern Hemisphere)
Equisetum variegatum in Alaska
A tussock tundra near Toolik Lake LTER Station, on August 8 2009.