Echinocereus polyacanthus

Echinocereus polyacanthus is a species of Echinocereus. It's type locality is Cosihuiriachi, Chihuahua.

Background
Cespitose, forming clumps of 20 to 50 stems, pale green but often tinged with red; ribs usually 10, low; areoles approximate; spines gray when old, at first pale yellow, becoming more or less purplish; radial spines about 12; centrals 4, straight, elongated; flowers crimson, 6 cm. long; spines on ovary and flower-tube yellow, intermixed with cobwebby wool; fruit and seeds unknown. Distributed in Chihuahua and Durango, Mexico, to western New Mexico and southeastern Arizona.