Dwarf shrub of the Ericaceae family, native to Yunnan and Sichuan, where it forms dense thickets on rocky slopes and alpine moorlands between approximately 3,000 and 4,500 meters. Its specific epithet, meaning "hindered, tangled," precisely evokes the bushy and impenetrable nature of its natural populations.
It forms a very compact, dense, and rounded bush, with interwoven branches and slow growth, generally reaching 30 to 60 cm in height. The leaves are evergreen, very small, oval, heavily scaly on both sides, from a gray-green to slightly glaucous bluish-green — a characteristic hue that immediately distinguishes it from other dwarf rhododendrons with mauve blooms.
The flowers are gathered in twos or threes in small terminal corymbs, widely open, with spreading lobes and prominently visible stamens, from lilac-purple to pinkish mauve depending on the individuals. Their abundance at the time of flowering is such that they almost completely mask the foliage. In its natural habitat, flowering extends from May to June. In cultivation, it generally occurs in April-May.
It requires acidic, humus-rich, fresh, and perfectly drained soil, without limestone. It tolerates and appreciates full sun in a temperate climate, which promotes a compact habit and abundant flowering. Its hardiness is good. It has received the RHS Award of Garden Merit.