About Cephalocereus tetetzo (F.A.C.Weber ex J.M.Coult.) Diguet
Cephalocereus tetetzo is a columnar cactus that mostly produces branching shoots, and can reach a maximum height of 15 meters. It forms a trunk up to 70 cm (28 inches) in diameter. The gray-green shoots are 8 to 12 meters long, with a diameter between 18 and 30 cm (7.1 to 11.8 inches). This species has 15 to 20 blunt, slightly rounded ribs that bear black spines. Each areole produces one central spine, which grows up to 5 cm (2.0 inches) long, plus 8 to 13 radial spines that measure 1 to 2 cm (0.39 to 0.79 inches) long. Whitish, bell- to funnel-shaped flowers 5 to 6 cm (2.0 to 2.4 inches) long appear near the tips of the shoots. The pericarpel and flower tube of these flowers are covered in tubercles, scales, wool, and bristles. The fruits are egg-shaped, green, up to 4 cm (1.6 inches) long, and bear thorns. This species is distributed in the Mexican states of Puebla and Oaxaca.