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Roughfruit amaranth

Amaranthus tuberculatus

Also called Rough Fruit Amaranth, Rough Fruit Water Hemp, Rough Fruit Waterhemp, Tall Waterhemp, Tall Water Hemp, Water Hemp, Rough Fruited Water Hemp

Roughfruit amaranth
Photo: Unknown authorUnknown author, Public domain

Roughfruit amaranth is a fast-growing summer annual weed of the amaranth family, native to central and east-central North America and often found in fields and disturbed moist ground. It is best known as a pest rather than a garden plant, and it has been a serious herbicide-resistant weed in US crops.

Family
Amaranthaceae (Amaranth & beet family)
Grows as
Bulb, Annual
Light
Full sun
Water
Thrives in moist soil and tolerates wet ground; it does well with regular moisture.
Soil
Adaptable; grows in moist, fertile soils including disturbed ground and field edges.
Temperature
Warm-season plant; grows in temperate summers, frost-tender and killed by frost.
How easy
Easy
Native range
C. & EC. U.S.A.
Climate
temperate

About

Amaranthus tuberculatus, commonly known as roughfruit amaranth, rough-fruited water-hemp, tall waterhemp, or common waterhemp, is a species of flowering plant. It is a summer annual broadleaf with a germination period that lasts several months.

Tall waterhemp has been reported as a weed in 40 of 50 U.S. states.

Other Amaranthus plants

Greenstripe · Prostrate pigweed · Mat amaranth · Purple amaranth · Brown's amaranth · Love-lies-bleeding · Red amaranth · Spleen amaranth · Mediterranean amaranth · Slim amaranth · Prince-of-Wales feather · African amaranth

Text excerpted from the Wikipedia article Amaranthus tuberculatus by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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