Echinopsis densispina Werderm.
(Synonym: Lobivia densispina (Werderm.) Backeb. & F.M.Knuth, Lobivia haematantha (Speg.) Britton & Rose var. densispina (Backeb. & F.M.Knuth) Rausch)
Order Caryophyllales, Family Cactaceae, Subfamily Cactoideae
Distribution range: Argentina (Jujuy)