Annual Pearlwort, Common Pearlwort: Sagina apetala (Synonym: Sagina apetala var. barbata) -
Western Pearlwort, Trailing Pearlwort: Sagina decumbens ssp. occidentalis (Synonym: Sagina occidentalis) -
Japanese Pearlwort: Sagina japonica -
Fleshy Pearlwort, Thick-stemmed Pearlwort: Sagina maxima ssp. crassicaulis (Synonym: Sagina crassicaulis) -
Stick-stemmed Pearlwort: Sagina maxima ssp. maxima (Synonyms: Sagina crassicaulis var. litoralis, Sagina litoralis) -
Procumbent Pearlwort, Bird-eye Pearlwort: Sagina procumbens (Synonym: Sagina procumbens var. compacta) -
Alpine Pearlwort, Arctic Pearlwort: Sagina saginoides (Synonyms: Sagina linnaei, Sagina micrantha, Sagina saginoides var. hesperia, Spergula saginoides) -