Here is what Ven S. Dhammika has in his NATURE AND THE ENVIRONMENT
IN EARLY BUDDHISM
Bhaṅga. Cannabis, Cannabis sativa (Vin.I,58). Cannabis is a tall annual herb with broad spear-shaped leaves with serrated edges and which emits a particular odor. Steam from cannabis leaves boiled in water was used as a sweating treatment for sore limbs and rheumatism (Vin.I,205). Fibre from the stem was used to make ropes and woven into a coarse cloth (D.II,350 Vin.III,256). There is no mention in the Tipiṭaka of cannabis being taken for its hallucinogenic effect. The Hindi word bhang is now used specifically for the dried leaves of this plant.
And I search for similar Nepalese treatment
In Nepal they use Aesculus indica for joint pain.
Named
Indian horse chestnut is a large tree, distributed in the Himalayas from Kashmir to Nepal. The tree is locally known as Khanor in Himachal Pradesh
Looks like it’s a tree but it’s name is different. That’s the similar usage I found