Please note that for more than 100 years the Kashmir Bredmushk was known as S. caprea L. It was only Stewart in 1972 who ponted out that plant known as S. caprea by Flora of British India as also Forest Flora of Punjab 1956 was actually S. aegyptiaca L. Flora of Pakistan which usually lists all plants from Kashmir does not list S. caprea.
This should help to confirm whether or not both occur in Kahmir.
S. aegyptiaca (S. medemii) — Egyptian willow
A willow originating from West Asia and widely cultivated. (Plants from Egypt, after which the species was named,
represent cultivated material.) Due to tree habit and broad hairy leaves, S. aegyptiaca resembles the European goat
willow S. caprea; however, unlike S. caprea, it is easily propagated from cuttings and thus has been favored for
cultivation (Skvortsov 1999: 178). According to Rehder (1954), it has been in cultivation in the United States since
1888 (under the name S. medemii). As its naturalization is not yet positively demonstrated, for the time being we
prefer to treat any findings as waifs. All examined herbarium samples that we could confidently identify as S.
aegyptiaca as well as living plants found in Berkshire County might represent planted willows. Plants found in natural
settings, deviating from S. atrocinerea or S. cinerea by somewhat bluish foliage, more densely pubescent leaves, and
buds without recurved beak may belong to this species.
Another help in ID, wood under the bark is striated in S. aegyptiaca, smooth in S. caprea.