Rhododendron trichostomum (毛嘴杜鹃) is a rhododendron species native to southwestern China, where it grows at altitudes of 2700–4600 meters. It is a shrub that grows to 0.3–1 m in height, with leaves that are linear, linear-lanceolate, oblong, or oblanceolate, 0.8–3.2 by 0.3–0.5 cm in size. Flowers are pink or white.