Elettaria cardamomum Rhizomes 

It is a pungent aromatic herbaceous perennial plant growing to 2–4 m in height. The leaves are alternate in two ranks, linear-lanceolate, 40-60 cm long, with a long pointed tip. The flowers are white to lilac or pale violet, produced in a loose spike 30-60 cm long. The fruit is a three-sided yellow-green pod 1-2 cm long, containing several black seeds.