(Wall. ex G.Don) I.M.Johnst.


Description
Arnebia benthamii is a stout alpine herb of the western and central Himalaya, distributed through India, Pakistan and Nepal, with GBIF recording roughly 167 occurrences. It inhabits open alpine meadows, grassy and rocky slopes, and stabilised scree in the subalpine and alpine zones, typically from 3000 to 4200 m. The photographed plant grew in West Nepal near Bhulbhule at 3500 m in June, when the species comes into flower as the snow recedes, forming conspicuous erect spikes among the early-summer alpine sward.
The plant is a robust, densely hispid perennial arising from a thick woody rootstock that yields a purple dye. The stems are erect, unbranched and bristly, clothed with sessile, oblong to lanceolate, rough-hairy leaves. The inflorescence is a dense, elongate, cylindrical thyrse of crowded scorpioid cymes subtended by leafy bracts. The flowers are tubular-funnelform, the corolla bluish-purple to violet (drying darker), five-lobed with a hairy throat; the calyx is deeply five-parted and bristly. There are five included stamens and a deeply four-lobed ovary, the gynobasic style producing four hard nutlets at maturity.
The species is referable to genus Arnebia (subfamily Boraginoideae). It is of considerable ethnobotanical importance: the dye-yielding roots, known regionally as "Kahzaban" or "gaozaban," are widely used in Unani and folk medicine, driving substantial wild harvesting. This pressure, combined with grazing and a slow-maturing perennial habit, has caused local declines, and the species is regarded as conservation-sensitive in parts of the western Himalaya, prompting calls for sustainable collection and cultivation.
Author: (Wall. ex G.Don) I.M.Johnst. · Sources: POWO (Kew), GBIF, Flora of Pakistan, Flora of Nepal, Flowers of the Himalaya (Polunin & Stainton)
















