Carex crawei

It is native to North America, where it is widespread in the United States and Canada.

[2] Though widespread, it has a patchy distribution and is generally rare throughout its range.

It is found in wet calcareous areas, usually associated with flat limestone outcrops or gravels.

[3] It is usually found in high quality natural habitats.

[4] It is a rhizomatous perennial that flowers in early spring.