Iresine arenaria Standl .
in Contr. U.S. Natl. Herb. 18: 93. 1916 – Holotype: MEXICO. Sinaloa: Topolobampo, 23 Mar 1910, J.N. Rose 13292, P.-C. Standley & P.-G. Russell (US barcode 00102816!; isotype: NY barcode 0 0 324524 [image!]).
Taxonomic status: Species limits not yet studied in detail (B).