By 'Himalayan' I follow the definition used by Polunin & Stainton in 'Flowers of the Himalaya', "Frpm Nanga Parbat on the Indus the Himalaya stretch eastwards 2250km to Namcha Barwa on the bend of the Tsangpo in South-East Tibet'. 'Flowers of the Himalaya' covered only the part of the range which lies in Nepal and the Indian Western Himalaya (now Jammu & Kashmir, Himachal Pradesh and Uttarakhand states), a distance of 1450km. I am also able to cover the remainder of the Himalaya proper, though the further West one is, the greater my familiarity with the flora and I can also name material from the Karakoram mountains of Northern Pakistan; Baltistan in particular, has a flora which overlaps considerably with that of Ladakh's. More precisely, Ladakh is in the TransHimalaya.
FLORA OF THE HIGH MOUNTAINS OF PAKISTAN within summitpost.org - though several images in the gallery were actually photographed at lower elevations. May 1st-3rd May 2018. See: https://www.summitpost.org/flowers-dodhipat-lake-kaghan-valley-pakistan/363077/c-349436