Amaranthus Genus amaranth Amaranthaceae

  

Amaranthus albus.Regina O. Hughs.New England Wild Flower Society.gobotany.newenglandwild.org

Amaranthus albus.Regina O. Hughs.New England Wild Flower Society.gobotany.newenglandwild.org (Accessed 12/2014).

Amaranthus retroflexus inflorescence. Dr. James Altland Oregon State University North Willamette Research & Extension Center. oregonstate.edu

Amaranthus retroflexus inflorescence. Dr. James Altland Oregon State University North Willamette Research & Extension Center. oregonstate.edu (Accessed 8/017).

Amaranth genus are annual C4 herbs, usually much branched. 

Amaranthus retroflexus plant. By Paul S. Drobot. Copyright © 2017 Paul S. Drobot. Robert W. Freckmann Herbarium, U. of Wisconsin-Stevens Point.gobotany.newenglandwild.org

Amaranthus retroflexus plant. By Paul S. Drobot. Copyright © 2017 Paul S. Drobot. Robert W. Freckmann Herbarium, U. of Wisconsin-Stevens Point. gobotany.New England Wild Flower Society. newenglandwild.org (Accessed 8/2017)

Leaves alternate, stalked (petiolate), entire or with a wavy margin (sinuate). 

Flowers very small, radially symmetrical, subtended by bracts, no petals, sepals dry, membranous; inflorescence of dense clusters (glomerate). 

Amaranthus retroflexus roots. By Paul S. Drobot. Copyright © 2017 Paul S. Drobot. Robert W. Freckmann Herbarium, U. of Wisconsin-Stevens Point.gobotany.newenglandwild.org

Amaranthus retroflexus roots. By Paul S. Drobot. Copyright © 2017 Paul S. Drobot. Robert W. Freckmann Herbarium, U. of Wisconsin-Stevens Point. New England Wild Flower Society. gobotany.newenglandwild.org (Accessed 8/2017).

Fruit dry, small, thin-walled, 1-seeded, with a crown of dry stigmas.