Echinocereus occidentalis is a species of cactus native to Mexico.[1]
Echinocereus occidentalis stems form clumps, are cylindrical and erect, light green, and measure up to in diameter and in height. The stems have 12-19 ribs. The spines are whitish-yellow with dark tips. There are 9-13 radial spines, each long, and 1-5 central spines, each long. The flowers are magenta with a light center, measuring in both length and width. The fruits are round, pinkish-red, in diameter, with white to pink pulp and black seeds.
There are two recognized subspecies:[1]
| Image | Scientific name | Distribution |
|---|---|---|
| Echinocereus occidentalis subsp. breckwoldtiorum De-Nova, Cast.-Lara & W.Blum | Mexico (SW. Coahuila, N. Zacatecas) | |
| Echinocereus occidentalis subsp. occidentalis | Mexico (E. Central Durango) | |
Plants are found growing in south-western Coahuila, central to eastern Durango, and northern Zacatecas at elevations of . Plants grow in limestone soil in desert shrub.[2]