About Pilosocereus collinsii (Britton & Rose) Byles & G.D.Rowley
Pilosocereus collinsii can grow up to 3 meters tall, with slender stems that measure 3–4 cm in diameter. Each stem has approximately 7 obtuse ribs. Areoles are spaced 1.5 cm apart, and they bear numerous acicular spines. Flowers grow at the tips of stems and can reach up to 5 cm in length. Fruits are globular, slightly depressed, and 3 cm long. Its black seeds range from 1.5 to 2 mm in length.