A dwarf shrub perennial of the Ericaceae family, Cassiope lycopodioides is native to Japan, the Aleutian Islands, and Alaska, where it grows between 1,500 and 2,500 meters in altitude, on acidic moorlands, high-altitude bogs, and exposed rocky slopes.
It forms dense, hemispherical cushions, barely exceeding 8 to 12 cm in height, with thin, tight stems adorned with very small leaves closely imbricated in four regular rows, a shiny dark green reminiscent of the habit of a clubmoss, as its name suggests.
The flowers are small, hanging, pure white bells, borne on fine reddish peduncles. The sepals, a warm red-brown and very visible, form a colorful star at the base of each corolla that contrasts beautifully with the white and dark green of the cushion. In full bloom, the bells cover the plant with remarkable density.
In its natural habitat, its flowering extends from April to July depending on latitude and altitude. In cultivation, it occurs from April to May. It requires an acidic, peaty soil, constantly fresh to moist, without lime, in partial shade or full light in regions with cool, humid summers.