''Amaranthus greggii'', also known as Gregg's amaranth or Josiah amaranth, is a

glabrous Glabrousness (from the Latin ''glaber'' meaning "bald", "hairless", "shaved", "smooth") is the technical term for a lack of hair, down, setae, trichomes or other such covering. A glabrous surface may be a natural characteristic of all or part of ...

annual

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...

native to

Texas Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 ...

Louisiana Louisiana , group=pronunciation (French: ''La Louisiane'') is a state in the Deep South and South Central regions of the United States. It is the 20th-smallest by area and the 25th most populous of the 50 U.S. states. Louisiana is borde ...

, and

Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...

. The plant can grow up to 1 m (3 ft) in height. It is found in sand dunes and near sea beaches. The species name ''greggii'' honors

Josiah Gregg Josiah Gregg (19 July 1806 – 25 February 1850) was an American merchant, explorer, naturalist, and author of '' Commerce of the Prairies'', about the American Southwest and parts of northern Mexico. He collected many previously undescribed pla ...

(1806–1850), a merchant, explorer, naturalist, and author of the

American Southwest The Southwestern United States, also known as the American Southwest or simply the Southwest, is a geographic and cultural region of the United States that generally includes Arizona, New Mexico, and adjacent portions of California, Colorado, N ...

and Northern

References

greggii Flora of Louisiana Flora of Texas Flora of Mexico Taxa named by Sereno Watson {{Amaranthaceae-stub According to J. D. Sauer (1972b), Amaranthus myrianthus Standley most probably is a hybrid between A. arenicola and A. greggii. The seeds of A.greggii are dark brown and shiny,FNA Vol. 4 Page 412, 413, 416, 418, with 1.2-1.7 mm in diameter.