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Amaranthus spinosus
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 2: 3.
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Amaranthus spinosus
USDA, NRCS. 2009. The PLANTS Database (http://plants.usda.gov, 22 June 2009). National Plant Data Center, Baton Rouge, LA 70874-4490 USA.
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Amaranto spinoso
edlebur
pigweed species
spiny amaranth
spiny amaranthus
Spiny Pigweed
thorny amaranth
thorny pigweed
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