Hennediella heimii var. arctica
Bull. Buffalo Soc. Nat. Sci. 32: 248. 1993,.
Leaves broadly ovate to broadly elliptic, concave and often cucullate, apex usually obtuse, margins usually entire; costa often ending before the apex.
Phenology: Capsules mature late summer (Aug).
Habitat: Exposed soil, silt
Elevation: low elevations
Greenland, N.W.T., Nunavut, Ont., Alaska, Europe, n Asia
Variety arctica is a somewhat poorly circumscribed taxon largely restricted to the Arctic. It is generally much smaller than var. heimii, with leaves commonly 0.5–0.8 mm.