• Isnardia hirsuta Hook. & Arn. in Compan. Bot. Mag. 1: 26 (1835), nom. illeg. vide Ludwigia hirtella Raf. in Med. Repos., ser. 2, 5: 358 (1808)
  • Isnardia hirsuta Roem. & Schult. in Syst. Veg., ed. 15[bis]. 3: 477 (1818) vide Ludwigia pilosa Walter in Fl. Carol.: 89 (1788)
  • Isnardia hirsuta DC. in Prodr. 3: 60 (1828), nom. illeg. vide Ludwigia pilosa Walter in Fl. Carol.: 89 (1788)