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Amaranthus polygonoides

Amaranthus polygonoides L.

Tropical Amaranth

Amaranthaceae (Amaranth Family)

Synonym(s): Amaranthus berlandieri, Amaranthus polygonoides ssp. berlandieri


USDA Native Status: L48 (N), VI (I)

The Amaranthaceae are a family of annual or perennial herbs with small, crowded flowers. There are usually 5 sepals and no petals. Filaments of the stamens are often united into a short tube.


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Plant Characteristics

Duration: Annual
Habit: Herb
Leaf Shape: Ovate
Leaf Margin: Entire
Leaf Apex: Emarginate , Mucronate , Obtuse
Leaf Base: Cuneate
Inflorescence: Axillary
Size Notes: Up to about 18 inches tall.
Fruit: Utricle.

Bloom Information

Bloom Color: White , Red , Green
Bloom Time: Jun , Jul , Aug , Sep , Oct , Nov



Web Reference

Webref 57 - Atlas of Florida Plants (2020) Institute for Systematic Botany
Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Amaranthus polygonoides in USDA Plants
FNA: Find Amaranthus polygonoides in the Flora of North America (if available)
Google: Search Google for Amaranthus polygonoides


Record Modified: 2022-11-11
Research By: TWC Staff

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