[2][3][4] Rhododendron albiflorum is a deciduous shrub up to 2.5 m tall, with thin shiny medium-green elliptical entire leaves that are 4 to 9 cm long and held on short petioles.

The leaves are often slightly crinkled or wavy especially at their edges, and are sparsely covered with reddish to white hairs.

[3][4] The early to mid summer flowers are white and born in outward facing to slightly pendulous clusters of 1–5 at axils on the previous years growth.

[3][4] Rhododendron albiflorum grows in mountains from British Columbia to northern Oregon and inland to western Alberta and eastern Montana, at elevations above 1,000 meters.

[2] Rhododendron albiflorum is usually found on densely to partially forested moist mountain slopes, often forming a substantial part of the shrubby understory.