1) Cyperus longus 2) Galangal 3) Sedge 1) Sedge 
• (n.) A plant of the Sedge family (Cyperus longus) having aromatic roots; also, any plant of the same genus.
(from the article `Cyperaceae`) The six largest genera within the Cyperaceae account for about 3,500 species, nearly three-quarters of the total species: Carex (sedges; see ...
Gal'in·gale noun [ See Galangal .] (Botany) 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. 
The galingale or galangal (Cyperus longus) is a European cyperaceous plant with rough-edged leaves, reddish spikelets of flowers, and aromatic roots.
[n] - European sedge having rough-edged leaves and spikelets of reddish flowers and aromatic roots