Amaranthus australis is also known as southern amaranth or southern water-hemp. The plant usually grows from 1 to 3 m (3 to 9 feet) in height, though some have been known to grow up to 9 m (27 feet) high. The stems can be up to 30 cm in diameter. It is a herbaceous annual. It is found in many Southern states of the USA, Mexico, the West Indies, and South America. They are frequently found...