Kalmia microphylla (Hooker) A. Heller subsp. microphylla

Kalmia microphylla (Hooker) A. Heller subsp. microphylla is a synonym sensu TROPICOS of:

Kalmia microphylla (Hooker) A. Heller var. microphylla, an accepted variety name sensu FNA Ed. Comm., 2009.