Echinocereus ctenoides

Echinocereus ctenoides is a species of Echinocereus. It's type locality is Eagle Pass, Texas.

Background
So far as known simple, cylindric, elongated, 10 to 40 cm. long, 8 to 10 cm. in diameter, decidedly banded with pink and gray as in the rainbow cactus; ribs 15 to 17, low; areoles crowded together, short-elliptic; radial spines often as many as 20, not spreading but standing out at an angle to the ribs; flowers up to 10 cm. long, about 8 wide as long when fully expanded, bright to reddish yellow; filaments yellow; style white; ovary and fruit very spiny. Distributed in Southern Texas and Chihuahua.