| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|
| Caryophyllaceae | Sabulina diffusa | | Calcareous ledges and glades. | E. and c. KY, sw. VA, and e. and c. TN; also s. MO. | 
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| Caryophyllaceae | Sabulina fontinalis | Seepage Starwort, Water Starwort | Seepages and wet cliffs, disturbed areas, over calcareous substrate, growing from moss mats; rarely in lawns. | C. TN (Chester, Wofford, & Kral 1997) and c. KY; disjunct in the Black Belt of AL (B. Keener, pers. comm., 2023). | 
|
| Caryophyllaceae | Sabulina michauxii | Rock Sandwort | Limestone, dolostone, calcareous sandstone, serpentine, and calcareous shale outcrops and barrens. | ME west to SD, south to VA, AL, nw. AR, TX, and NM. | 
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| Caryophyllaceae | Sabulina muscorum | Lime-barren Sandwort | Rocky barrens of calcareous or mafic rocks, sandy barrens. | MO, e. KS, e. OK, and e. TX. | 
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| Caryophyllaceae | Sabulina paludicola | Godfrey's Sandwort | Tidal freshwater marshes, calcareous seeps, other wetlands. | Peculiarly and irregularly distributed, with isolated and scattered locations in the Coastal Plain and Mountains: wc. VA, ne. TN, e. NC, ne. SC, e. Panhandle FL, n. peninsular FL, and wc. AL. The c. TN material is likely not the same as S. paludicola. Reports from s. AR were misidentified. | 
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| Caryophyllaceae | Sabulina patula | Lime-barren Sandwort | Rocky barrens of calcareous or mafic rocks. | Ec. PA and w. VA west to IN and MN, south to AL and TX. | 
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