Needleleaf Sandwort, Prickly Sandwort: Eremogone aculeata (Synonyms: Arenaria aculeata, Arenaria aculeata var. aculeata, Arenaria aculeata var. uintahensis, Arenaria salmonensis, Arenaria fendleri var. aculeata, Arenaria pumicola var. californica, Arenaria unintahensis)-
Fescue Sandwort, Mountain Sandwort, Slender Mountain Sandwort, Threadleaf Sandwort, Thread-leaved Sandwort: Eremogone capillaris var. americana (Synonyms: Arenaria capillaris ssp. americana, Arenaria capillaris var. americana, Arenaria formosa, Eremogone americana) -
Hybrid Sandwort: Eremogone capillaris x congesta var. americana (Synonym: Arenaria capillaris x congesta ssp. americana) -
Ballhead Sandwort: Eremogone congesta var. congesta (Synonym: Arenaria congesta var. congesta) -
Fleshy Sandwort: Eremogone congesta var. crassula (Synonym: Arenaria congesta var. crassula) -
King's Sandwort: Eremogone kingii var. glabrescens (Synonym: Arenaria kingii var. glabrescens) -
Crater Lake Sandwort, Pumice Sandwort: Eremogone pumicola (Synonym: Arenaria pumicola) -