Palmer Amaranth, Careless Weed, Pigweed

Amaranthus palmeri

Dry, Moist
7-12
Annual

Plant ID: 4220 / Created at: 2020-11-13 18:58:46 UTC / Last updated at: 2021-02-02 03:23:23 UTC by ailanthus

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Description

A wild amaranth native to North America, particularly the arid Southwest.

Cooked greens are edible. Can accumulate toxic levels of nitrates when grown on artificially fertilized soils.

A fast-growing C4 plant adapted to extreme heat and drought, growing during the brief rainy season in the Southwest US. A serious weed in industrial agriculture.

Plants are dioecious. Males can trigger pollen allergies in sensitive individuals.

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