Not an accepted name (status: unknown). The accepted name is Lobivia arachnacantha var. densiseta Rausch, 1970.

Echinopsis arachnacantha subsp. densiseta (Rausch) M.Lowry, 2002 2% complete

No common name

Cactaceae Syst. Init. 13: 16 (2002)

There is no corrections for Echinopsis arachnacantha subsp. densiseta yet.