Arctostaphylos nummularia subsp. mendocinoensis, commonly known as pygmy manzanita, is a subspecies of manzanita. It is endemic to Mendocino County, California, where it is known from scattered occurrences in the pygmy forests near the coast.
This is a small, mat-forming shrub growing in low mounds less than half a meter tall. It has red, shreddy bark and bristles along its smaller branches. The leaves are dark green, shiny, convex, and hairless, and rarely more than a centimeter long. The inflorescence is a dense cluster of urn-shaped flowers with four tiny lobes at the mouth. The fruit is a cylindrical drupe only a few millimeters long, containing four minute seeds.