Balf. f.
Description
Primula buryana is a high-alpine primrose of the central and western Himalaya, recorded from Nepal and adjacent south-central China (Xizang), with around one hundred and twenty-two GBIF occurrences indicating a localised but well-documented range. It grows in damp alpine meadows, on grassy and rocky slopes, beside snowmelt rills and in moist turf above the treeline, typically around 4000 to 4500 m. The illustrated plant from the Churta-Khola in West Nepal at 4100 m, flowering in June, is characteristic of its early-summer phenology, blooming shortly after the snow retreats from the high pastures it favours.
The species is a small perennial herb forming a basal rosette of leaves that are often farinose (mealy with white or yellowish farina) and oblong to spathulate with crenate to denticulate margins. From the rosette rises a slender scape bearing a one- to several-flowered umbel subtended by an involucre of bracts. The flowers are heterostylous (pin and thrum), with a tubular calyx and a salverform to funnelform corolla that is violet to purple or pinkish with a contrasting yellowish or white eye. The fruit is a small capsule shorter than or about equalling the calyx, releasing numerous angular seeds.
Primula buryana is an accepted species placed within the petiolarid alliance of Primula (Primulaceae), the Himalayan group of farinose, small-statured alpine primroses. Its heterostyly promotes outcrossing, while the farina and compact rosette habit are adaptations to high insolation and the brief, moisture-rich alpine season. The species has a restricted range and, although not formally assessed, its dependence on intact high-altitude wet meadows makes it potentially vulnerable to grazing and climatic change.
Author: Balf. f. · Sources: POWO (Kew), GBIF, Annotated Checklist of the Flowering Plants of Nepal, Flora of China, Richards monograph Primula (Primulaceae)