United States, Indiana, LaPorte, In Wellsboro, along the C & O RR, about 1/4 mile south of US 6; colony of about 30 plants on west side of abandoned railroad bed.
Ambrosia artemisiifolia var. elatior; A. trifida; Asclepias syriaca; Daucus carota; Lepidium campestre; Melilotus alba