About Ferocactus peninsulae (F.A.C.Weber) Britton & Rose
Ferocactus peninsulae typically grows to around 70 centimeters (28 inches) in height, and rarely reaches 2.5 meters. Its diameter measures up to 40 centimeters (16 inches). This cactus is oval to club-shaped, with 12 to 20 prominent, deep ribs. Its thorns are grayish-red, with yellowish or whitish tips. The central spines are banded and measure 4 to 15 centimeters long; the lowest central spine is flattened and curved into a hook shape. This species has 6 to 13 radial spines, which are distinct from the central spines, slender, sometimes twisted, and bristle-like. The funnel-shaped flowers range in color from red to yellow, and grow 5–6 centimeters (2.0–2.4 inches) long. The fruits are spherical, yellow, and grow up to 4.5 centimeters (1.8 inches) long. Ferocactus peninsulae is native to the Mexican state of Baja California Sur, where it grows on sandy hillsides at elevations between 0 and 450 meters. It grows alongside the species Mammillaria dioica, Cochemiea setispina, Echinocereus ferreirianus, and Lophocereus schottii.
