Echinocereus subinermis
Echinocereus subinermis is a species of flowering plant in the cactus family Cactaceae, native to north, northwestern, and central Mexico.
Description
Echinocereus subinermis grows either solitary or branching, often forming groups of up to 10 shoots. The stem is a ball with gray-green to reddish, 5 to 11 prominent ribs, growing to a cylinder or cone 4 to 15 tall and wide, and producing yellow flowers long in early summer. There are up to four central spines, which may be light or dark and are 0.1 to 2 centimeters long, although they can also be absent. The plant may also have up to ten slender, light yellow to gray marginal spines that are 0.1 to 3 centimeters long, but these too can be absent. The flowers are funnel-shaped, fragrant, and bright yellow, appearing near the shoot tips. They are 7 to 10 centimeters long and 5 to 13 centimeters in diameter. The gray-green, obovate fruits are thorny, contain white pulp, and split lengthwise when ripe.Subspecies
Accepted subspecies:| Image | Scientific name | Distribution |
| Echinocereus subinermis subsp. subinermis | Mexico | |
| Echinocereus subinermis subsp. ochoterenae N.P.Taylor | Mexico |