About Pelecyphora dasyacantha (Engelm.) D.Aquino & Dan.Sanchez
Pelecyphora dasyacantha typically grows as a single individual, and occasionally produces new shoots from sprouts. Its shoots range in shape from depressed spherical to short cylindrical, growing up to 20 centimeters in height and 4 to 7 centimeters in diameter. Dense white thorns cover the entire shoot surface. The warts on the shoots reach up to 10 millimeters in length; older warts located at the base of the shoots are often corked and lack thorns. This species has 7 to 17 strong, white central spines that measure 2.5 centimeters long. It also has 25 to 50 or more strong, white marginal spines, which range from 0.6 to 2.5 centimeters in length. The flowers are generally pink to brownish, and occasionally greenish. Flowers grow up to 2 centimeters long, with a diameter between 1.5 and 2 centimeters. Rarely do flowers open completely, blocked by the plant's dense, stiff spines. The fruits are red, club-shaped, and grow up to 10 millimeters long. Pelecyphora dasyacantha is distributed in the United States in the states of New Mexico and Texas, and in Mexico in the states of Chihuahua, Coahuila, Nuevo León, and Zacatecas.
