The buds, which are very sticky, are collected in the spring before they open and then boiled. Drinking the tea relieves cold symptoms. The resin which collects on the side of a pot can be used for cuts. The sticky buds can be applied to a sore to aid healing. Long ago, people burned the bark of poplar and then mixed the ashes into dog food. This helped control worms and keep dogs’ fur in good condition.
Source: Andre, Alestine and Alan Fehr, Gwich'in Ethnobotany, 2nd ed. (2002)