[Ferocactus tortulispinus] Fire Barrel or Compass Barrel (fer-oh-KAK-tus)
When young this is a rounded cactus with curved spines. Solitary growing with a globose shaped stem, older plants grow up to 2 feet (2 ft = 61 cm) tall and 16 inches (16 in = 40.6 cm) wide. This species has 20 narrow slightly tuberculate ribs and mostly gray spines that are very twisted. When large enough to bloom it produces yellow or orange flowers in summer and early fall.
Zones 9B to 11
Native to Baja California.