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PlantFiles Pictures: Amaranthus Species, Needle Burr, Spiny Amaranth, Thorny Pigweed (Amaranthus spinosus) by DaylilySLP
Amaranthus Indicus spinosus, Spica et caule rubentibus = Schola Bot.. = Amaranto spinoso . [Spiny Amaranth from India] - NYPL Digital Collections
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