Tipos: "Hab. En los salitrales de los vallecitos de la sierra Pie de Palo, a lo largo del ferrocarril de Serrezuela, provincia de San Juan."
[Exsiccata: Not located. According to Kiesling (1984a: 236) the type specimen was not found.- Photographs: LP: Argentina, Prov. San Juan: "Opuntia halophila Speg., n. spec. ined. Sierra Pie de Palo, San Juan". Reproduced in the original description by Spegazzini (1925: 98).] => Katinas et al., Darwiniana 42: 194. 2004.
