Illecebrum frutescens Comm. ex Schult. species heterotypic synonym

Polycarpon dunense P.Fraga & Rosselló species synonym

Mollia alsinefolia (Biv.) Schult. species synonym

Polycarpon tetraphyllum subsp. floribundum (Willk.) Losa & Rivas Goday subspecies synonym

Polycarpon tetraphyllum var. ovalifolium Merino variety synonym

Polycarpon tetraphyllum var. depauperatum Merino variety synonym

Herniaria alsinifolia (L.) Mill. species synonym

Polycarpon polycarpoides var. bivonii (J.Gay) Maire variety synonym

Polycarpon tetraphyllum subsp. tetraphyllum subspecies accepted

Paronychia alsinifolia (L.) Juss. species synonym

Illecebrum frutescens Comm. species homotypic synonym

Illecebrum striatum Pers. species synonym

Paronychia striata (Pers.) DC. species synonym

Polycarpa tetraphylla (L.) Loefl. species synonym

Polycarpon tetraphyllum var. densum Rouy & Foucaud variety synonym

Polycarpon polycarpoides (Biv.) Adr.Fiori species synonym

Polycarpon loeflingiae (Wall. ex Wight & Arn.) Benth. & Hook.fil. species synonym

Hapalosia loeflingiae Wall. species synonym

Polycarpon tetraphyllum var. verticillatum Fenzl variety synonym

Pharnaceum depressum L. species synonym

Mollugo tetraphylla L. species synonym

Polycarpaea depressa (L.) DC. species synonym

Polycarpaea benthamii Wall. species synonym

Polycarpaea alsinifolia (L.) C.Mohr species synonym

Alsine polycarpa Crantz species synonym

Loeflingia indica Retz. species synonym

Loeflingia caspica S.G.Gmel. species synonym

Holosteum tetraphyllum (L.) Thunb. species synonym

Hapalosia loeflingiae Wall. ex Wight & Arn. species synonym

Polycarpon tetraphyllum f. ovalifolium (Merino) Amich form synonym

Polycarpon tetraphyllum var. fontqueri O.Bolòs & Vigo variety synonym

Polycarpon tetraphyllum var. diphyllum (Cav.) Romo variety synonym

Polycarpon tetraphyllum f. depauperatum (Merino) Amich form synonym

Polycarpon succulentum Webb & Berthel. species heterotypic synonym

Arversia loeflingii (Wight & Arn.) Walp. species synonym

Polycarpon sauvagei Mathez species synonym

Polycarpon polyphyllum Blanco species synonym

Polycarpon loeflingiae var. genuinum Briq. variety synonym

Polycarpon lanuginosum Edgew. & Hook.fil. species synonym

Polycarpon indicum (Retz.) Merr. species synonym

Polycarpon floribundum Willk. species synonym

Polycarpon diphyllum Cav. species synonym

Polycarpon brachypetalum Gagnep. species synonym

Polycarpon benthamii Hook.fil. & Edgew. species synonym

Polycarpon apurense Kunth species synonym

Polycarpaea tetraphylla (L.) E.H.L.Krause species synonym

Polycarpaea lanuginosa Wall. species synonym

Polycarpon peploides subsp. bivonii (J.Gay) Batt. subspecies synonym

Polycarpaea diphylla (Cav.) Mscr. species synonym

Hapalosia loeflingii Wall. species homotypic synonym

Polycarpon polycarpoides subsp. bivonii (J.Gay) Maire & Weiller subspecies synonym

Hapalosia loeflingii Wall. ex Wight & Arn. species synonym

Herniaria alsines-folia Mill. species synonym

Polycarpon tetraphyllum subsp. apurense (Kunth) Iamonico & C.A.Zanotti subspecies accepted

Polycarpon tetraphyllum var. floribundum (Willk.) Willk. variety synonym

Polycarpon depressum Edgew. & Hook.fil. species heterotypic synonym

Polycarpon depressum Nutt. ex Torr. & A.Gray species synonym

Polycarpon tetraphyllum var. diphyllum (Cav.) DC. variety synonym

Polycarpon tetraphyllum var. rotundatum Batt. variety synonym

Arversia loeflingiae (Wall. ex Wight & Arn.) Walp. species synonym

Mollia polycarpoides (Biv.) Link species synonym

Polycarpon tetraphyllum subsp. dunense (P.Fraga & Rosselló) Iamonico subspecies accepted

Arversia frankenioides Cambess. species synonym

Illecebrum alsinifolium L. species synonym

Polycarpon tetraphyllum subsp. sauvagei (Mathez) Iamonico subspecies accepted

Polycarpon tetraphyllum subsp. diphyllum (Cav.) O.Bolòs & Font Quer subspecies accepted

Polycarpa depressa (L.) Kuntze species synonym

Illecebrum alsinifolium Comm. ex Poir. species synonym

Illecebrum alsinifolium Comm. species homotypic synonym

Polycarpon tetraphyllum subsp. herniariodes (Ball) Iamonico & Domina, 2015 subspecies accepted