Subspecies, varieties, forms and cultivars of plants belonging to the Echinopsis tegeleriana group

• Echinopsis tegeleriana (Backeb.) D.R.Hunt: It grows usually solitarily but sometimes forms small clumps. It has large taproots. The blooms range from red to orange to yellow and have pink-orange throats.
• Echinopsis tegeleriana var. akersii (Backeb.) nov. comb. ined.: Stems are spherical-depressed dark green often tinged purple with a strong tap-root. It has characteristic long, tube-like orange flowers.