Soils: Amarillo fine sandy loam and Mansker finesandy loam, Slope: <3 degrees, Aspect: pond shoreline. With Echinochloa crus-gallii/Kochia scoparia: Chenopodiumdessicatum, Amaranthus albus, Helianthus ciliaris. Tissue was collected from this specimen for DNA Extraction by Charlotte Ngo at Queens University. Material removed by J. Kleinkopf & S. Haney. 18 Jan 2023. Origins of copy number in A. palmeri.