''Amaranthus australis'' is also known as southern amaranth or southern water-hemp. The plant usually grows from in height, though some have been known to grow up to 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 United States, Mexico, the

West Indies The West Indies is an island subregion of the Americas, surrounded by the Atlantic Ocean, North Atlantic Ocean and the Caribbean Sea, which comprises 13 independent island country, island countries and 19 dependent territory, dependencies in thr ...

, and

South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern Subregion#Americas, subregion o ...

. They are frequently found in

wetland A wetland is a distinct semi-aquatic ecosystem whose groundcovers are flooded or saturated in water, either permanently, for years or decades, or only seasonally. Flooding results in oxygen-poor ( anoxic) processes taking place, especially ...

areas. It is herbaceous, short lived

perennial In horticulture, the term perennial ('' per-'' + '' -ennial'', "through the year") is used to differentiate a plant from shorter-lived annuals and biennials. It has thus been defined as a plant that lives more than 2 years. The term is also ...

. The largest is tall.

References

Flora of North America
{{Taxonbar, from=Q4740154 australis Flora of the Caribbean Flora of Southern America Flora of the Southeastern United States Flora of Texas