Equisetum variegatum subsp. variegatum
Family: Equisetaceae
Equisetum variegatum subsp. variegatum image
From Flora of Indiana (1940) by Charles C. Deam
My only specimen is from the grassy border of a dried-up slough in the dunes about a quarter of a mile south of Pine, Lake County (now along Clark Street in Gary about a quarter of a mile south of Lake Michigan). It has been reported also from Porter and La Porte Counties. This species much resembles the next one [Equisetum x nelsonii] and is closely associated with it.

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Indiana Coefficient of Conservatism: C = 10

Wetland Indicator Status: FACW