Not an accepted name (status: unknown). The accepted name is Cassiope mertensiana subsp. gracilis Piper, 1907.

Cassiope mertensiana var. gracilis (Piper) C.L.Hitchc., 1907 2% complete

No common name

Smithsonian Misc. Collect. 50: 195 (1907)

There is no corrections for Cassiope mertensiana var. gracilis yet.