As per POWO & IPNI, the name is not correctable to "Hatiora salicornioides" as is it derived from a noun and a suffix, not two Greek or Latin words: https://www.ipni.org/n/312536-2 & https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:118071-2

See: https://www.inaturalist.org/flags/606742