Acanthocalycium spiniflorum
Acanthocalycium spiniflorum (K. Schumann) Backeberg 1935 – Echinocactus spiniflorum K. Schumann 1903, – Echinopsis spiniflora (K. Schumann) A. Berger 1929 – Echinopsis violacea Werdermann 1931, – Acanthocalycium violaceum(Werdermann) Backeberg 1935 Plants usually solitary, globose to somewhat elongate, depressed apically, to 60 cm (24 in) high, 10-15 cm (3.9-5.9 in) in diameter. Ribs 16-20, acute, somewhat…