What is a plant of the Sedge family (Cyperus longus) having aromatic roots; also, any plant of the same genus. Chaucer. Meadow, set with slender galingale. Tennyson called?

galingale — A plant of the Sedge family (Cyperus longus) having aromatic roots; also, any plant of the same genus. Chaucer. Meadow, set with slender galingale. Tennyson. (Webster's 1913.)

Sources