It grows in rocky, moist, often barren habitat, including gravelly, sparsely vegetated slopes with little organic matter.

[5] It is a calciphile, growing in calcareous substrates such as soils rich in decomposed limestone.

[6] This is a small, mat-forming perennial herb growing in a low, tight clump of hairy, glandular herbage.

The green, three-veined leaves are needlelike or flattened, no more than a centimeter long and a millimeter wide.

The plant blooms in summer with tiny flowers made up of pointed sepals under 4 millimeters long and five white petals roughly the same length or slightly smaller.