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Kalmia buxifolia is a species of flowering plant in the heath family known by the common name sandmyrtle, or sand-myrtle. It is native to the eastern 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.
This species is quite variable in appearance. It is a shrub growing 10 centimeters to one meter in height. The leaves may be alternately or oppositely arranged on the stems. They are oval to lance-shaped and up to 1.4 centimeters long. The inflorescence is a raceme or umbel of up to 18 flowers with white or light pink petals. The fruit is a capsule a few millimeters long.
This species grows in a variety of habitat types in its fragmented range, including sandy plains in the Carolinas and rocky mountain woods.
- Leiophyllum buxifolium. Center for Plant Conservation.
- Strand, A. E. and R. Wyatt. (1991). Geographical variation and biosystematics of sand myrtle, Leiophyllum buxifolium (Ericaceae). Systematic Botany 16(3) 529-45.
- Kron, K. A. and J. M. King. (1996). Cladistic relationships of Kalmia, Leiophyllum, and Loiseleuria (Phyllodoceae, Ericaceae) based on rbcL and nrITS data. Systematic Botany 21(1) 17-29.
- Kalmia buxifolia. Flora of North America.