Echinocereus salm-dyckianus

Echinocereus salm-dyckianus is a species of plant found in Mexico.

Description
Echinocereus salm-dyckianus is a clumping columnar cactus. The cylindrical stems are tapered towards their tip, 10 to 40 cm long and have a diameter of 2.5 to 4 cm. There are six to ten clearly blunt ribs, which are straight and slightly tuberous on their sides.There are up to ten yellow to reddish brown radial spines. The single central spines, is terete longer and thicker than radial spines. The tubular-funnel-shaped flowers are pink to orange apricot with a magenta inside. They appear along the sides of the shoots from sharply pointed buds, are 6 to 10 cm long with a hairy tube. This species is pollinated by hummingbirds.

Distribution
Echinocereus salm-dyckianus is found in Sierra Saguaribo in eastern Sonora and Sierra Charuco, Rio Haciendita, La Bateria, Nabogame, Sierra Obscura in western Chihuahua, Mexico growing in Sierra Madre Occidental at elevation between 1200 to 2100 meters. Plants are found growing in canyons and rocky slopes in the shade growing along with Echinocereus rigidissimus subsp. rubispinus, Echinocereus stolonifer, Echinocereus stolonifer subsp. tayopensis, and Echinocereus polyacanthus.

Taxonomy
This species was first described in 1856 by Frederick Scheer, who named it after Joseph zu Salm-Reifferscheidt-Dyck. The plant is distinguished from Echinocereus scheeri by having shorter spines and its stems.