plant redroot pigweed closeup .amaranthus retroflexus in garden

agriculture through uncultivated wildflower redroot pigweed leaf may meadow nature ornamental garden gardening grass green amaranth weed plant acid alternative amino bloom amaranthus amaranthaceae retroflexus viridis angiosperm annual crops biennial plants botanic botanical branch agrarian blossom bud cereal common contraceptives crop diuretic edible flowers grains herbal invasive laxative tumbleweed culture