Micranthocereus albicephalus is a species of plant in the family Cactaceae.

Its natural habitats are subtropical or tropical dry shrubland and rocky areas.

Micranthocereus albicephalus grows branching from the base with columnar, green shoots and reaches heights of growth of up to 2.5 meters.

The areoles, which are 3 to 5 millimeters apart, are covered with light yellow wool and white hair.

Numerous straight, up to 15 millimeters long, thin, prickly, golden-yellow thorns arise from them, one of which points downwards.