Indigofera cylindracea Baker, Fl. Brit. India 2: 99 (1876) (syn: Indigofera heterantha var. longipedicellata Thoth.);
.
Himalaya to Tibet and N. Indo-China: Assam, East Himalaya, Myanmar, Nepal, Thailand, Tibet, West Himalaya as per POWO;
.
SK 3236 17 September 2021: 1 very high res. image.
May be …!
Indigofera
Indigofera cylindracea Graham ex Baker ???
Yes, possible as per GBIF specimen- one.
But I am not sure.
Another possibility may be Indigofera heterantha
I shall take it as Indigofera cylindracea Graham ex Bake !
.
References: POWO Catalogue of Life The Plant List Ver.1.1 ILDIS GBIF specimen- one (High resolution specimens) Flora of China Annotated checklist of Flowering plants of Nepal