Gymnocalycium damsii var. torulosum Backeb. ex H.Till & Amerh. in Gymnocalycium 17: 553. 2004 Gymnocalycium damsii var. torulosum Backeb. ex H.Till & Amerh. in Gymnocalycium 17: 553. 2004Taxon for this nameGymnocalycium damsii var. torulosum Backeb. ex H.Till & Amerh.