About Echinocereus berlandieri (Engelm.) F.Haage
Echinocereus berlandieri grows with multiple shoots and forms clumps that can reach up to 1 meter in diameter. Its dark green to faintly purple-green, cylindrical shoots taper toward their base; they grow either prostrate along the ground, with only their tips pointing upright. The shoots measure 5 to 60 cm (2.0 to 23.6 in) in length and reach 1.5 to 3 cm (0.59 to 1.18 in) in diameter. This species has five to seven ribs with barely noticeable humps. It produces one to three strong, outward-facing central spines that range from yellowish to dark brown, and are 2.5 to 5 cm (0.98 to 1.97 in) long. There are also six to nine whitish marginal spines, which measure 1 to 2.5 cm (0.39 to 0.98 in) in length. The broadly funnel-shaped flowers are pink to reddish purple, and open below the tips of the shoots. The flowers are 7 to 8 cm (2.8 to 3.1 in) long and can reach up to 7 cm (2.8 in) in diameter. The resulting fruits are egg-shaped and green, measuring 2 to 2.5 cm (0.79 to 0.98 in) long, and the thorns on the fruits fall off as they mature. Echinocereus berlandieri is widespread in southern Texas, United States, and in the neighboring Mexican states of Nuevo León and Tamaulipas, growing at altitudes of up to 600 meters.
