Hedysarum mackenzii.

Botanical name: 

Hedysarum mackenzii Richards. Leguminosae. Licorice-Root.

North America. Richardson says at Fort Good Hope, Mackenzie River, this plant furnishes long, flexible roots which taste sweet like licorice and are much eaten in the spring by the natives but become woody and lose their juiciness and crispness as the season advances. This is the licorice-root of the trappers of the Northwest and is also used as a food by the Indians of Alaska.

Sturtevant's Edible Plants of the World, 1919, was edited by U. P. Hedrick.