Silver cock's comb (Celosia argentea) belongs to the family Amaranthaceae (the Amaranth family). It is an annual herb that is native to the southern United States and tropical America. Nawadays, it is naturalized widely in the tropical and sub-tropical areas. It is also naturalized in the west-southern warm areas of Japan. The stems are erect, and can reach 30-100 cm in height. The leaves are lanceolate to ovate-lanceolate, and arranged in alternate. The spikes are borne on the terminal branches, and the small, pale rose pink to white flowers bloom in summer.