Description
Saussurea taraxacifolia is a high-elevation composite of the Himalaya and adjacent ranges, distributed through Pakistan, India, Nepal, Bhutan and southern China, with roughly 209 GBIF records. It is a plant of the alpine zone, growing on open stony slopes, screes, gravelly flats and rocky alpine turf, generally well above the treeline. The Sikkim population photographed below Dzongri at 3800 m in August documents the species in its characteristic high-mountain habitat, flowering during the brief monsoon-fed alpine summer when these rosette perennials complete their reproductive cycle.
The plant is a low, often acaulescent or short-stemmed perennial herb arising from a stout rootstock, typically with a basal rosette of leaves. As the epithet indicates, the leaves are taraxacum-like (dandelion-like): oblanceolate in outline and runcinate-pinnatifid, with backward-pointing lobes, often somewhat woolly. The capitula are discoid, solitary or aggregated into a dense terminal cluster, each enclosed by an involucre of imbricate phyllaries and containing tubular purple to purplish florets; ray florets are absent, as throughout the genus. The fruit is a cypsela crowned by a pappus of plumose inner bristles and shorter, often barbellate outer bristles, an arrangement diagnostic of Saussurea and adapted to wind dispersal.
Saussurea is a large Sino-Himalayan and central Asian genus that has radiated extensively in the high mountains, with many narrowly endemic alpine specialists. S. taraxacifolia, with its dandelion-like rosette leaves, belongs to the low cushion- and rosette-forming alpine element rather than the woolly "snowball" snow-lotus group. Its dependence on open high-elevation habitats makes it a characteristic member of the Himalayan alpine flora; it is moderately widespread and not formally assessed as threatened, though high-mountain endemics of this kind are increasingly vulnerable to warming and habitat contraction.
Sources: POWO (Kew), GBIF, Flora of China, Flora of Bhutan, Annotated Checklist of the Flowering Plants of Nepal, Lipschitz's monograph of Saussurea