Echinocereus adustus. Sunset 9b-11; USDA: 8-11. Hardy to 10° F.  Full sun to light shade in hot gardens. Little water, needs porous soil. Solitary, cylindrical, 2 to 8" tall 2 to 5" in diameter. Dark pink to purple flowers. Origin: Chihuahua Mexico. Quantities over 100 ships in 2-3 weeks.