Leiophyllum buxifolium Kalmia buxifolia is a species of flowering plant in the family Ericaceae known by the common name sandmyrtle, or sand-myrtle.

It is native to the mid-Atlantic and southeastern United States, where it has a disjunct distribution, occurring in three separate areas.

It is known from the Pine Barrens of New Jersey, the Coastal Plain of the Carolinas, and the southeastern Blue Ridge Mountains.

[4] This species grows in a variety of habitat types in its fragmented range, including sandy plains in the Carolinas and rocky mountain woods.

[1] The Latin specific epithet buxifolia means "box-leaved", referring to species in the genus Buxus.