Ferocactus acanthoides v. tortulispinus Shop » Plants » Ferocactus acanthoides v. tortulispinus Ferocactus acanthoides v. tortulispinus $75.00 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 20 25 30 40 50 75 100 7-8 inches in diameter including spines. Rare!