United States, Wisconsin, Iowa, Arena; Along Hwy 14, 3.5mi E of Arena
43.1638738° N, 89.8404959° W; T08N R05E sec13
Sandy soybean (Glycine max) field with numerous weeds--Panicum dichotomiflorum, P. capillare, Setaria viridis, S. faberi, Digitaria sanguinalis, Cenchrus longispinus, Abutilon theophrasti, Hibiscus trionum (all panicoid grasses or Malvaceae!).
Common in spots, 1-1.5 m tall, more/less erect, sometimes in clumps of ca. 100 stems from a single base and then some of the culms decumbent at base and rooting at first nodes before becoming erect.