Peraphyllum ramosissimum is a shrub which may reach 3 metres (10 ft) in height.

[2] Like most other flowering plants of the Rosaceae, P. ramosissimum has 5 petals and 5 sepals with radial symmetry.

The flowers have about 15–20 free stamens, and the petals are white to rose in color.

Peraphyllum is most closely related to Amelanchier, Malacomeles, Crataegus, and Mespilus.

[3] Peraphyllum ramosissimum grows in Washington, California, Oregon,[1] Idaho, Utah, Colorado, and New Mexico, usually in pine and juniper woodlands.