''Phemeranthus calcaricus'', the limestone fameflower, is a species of flowering plant in the family

Montiaceae Montiaceae are a family of flowering plants, comprising about 14 genera with about 230 known species, ranging from small herbaceous plants to shrubs. The family has a cosmopolitan distribution. The family Montiaceae was newly adopted in the APG ...

. It is native to limestone glades of the Interior Low Plateaus of Tennessee, Kentucky, and Alabama, and in the

Ozark Mountains The Ozarks, also known as the Ozark Mountains, Ozark Highlands or Ozark Plateau, is a physiographic region in the U.S. states of Missouri, Arkansas, Oklahoma and the extreme southeastern corner of Kansas. The Ozarks cover a significant port ...

of Arkansas. The majority populations are found in the

Nashville Basin The Nashville Basin, also known as the Central Basin, is a term often used to describe the area surrounding Murfreesboro, Tennessee, in which Nashville is located. The Central Basin was caused by an uplifting which produced a dome known as the N ...

of Tennessee, where it can be locally abundant on exposed limestone in high quality glades. ''Phemeranthus calcaricus'' is a small, succulent

perennial A perennial plant or simply perennial is a plant that lives more than two years. The term ('' per-'' + '' -ennial'', "through the years") is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also wid ...

that is uncommon throughout its range.

References

Montiaceae {{caryophyllales-stub