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| - Toxicity can vary in a plant according to season, the plant???s different parts, and its stage of growth; and plants can absorb toxic substances, such as herbicides, pesticides, and pollutants from the water, air, and soil.Flower July to October.Habitat Moist sites with alkaline soil; alluvial soil, open woodlands, stream banks, old fields, waste areas, railways, roadsides, disturbed areas.Range N
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