Panzner Wetland Field E in restored emergent wetland (SE corner, only one I saw). This keys out to either lupuliniformis or or lupulina, but am not sure whether the edges on the aches have a prominent enough knob to be the former. I included a second photo with a closeup (iphone through microscope eyepiece) of an achene, hoping someone with more experience can tell which.
My impression of the plant in the field was that it looked different than the Lupulina I've seen before - perigynia point more forward, I think, coarser.
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Celebrate the OBS Centennial with an all-taxa BioBlitz across the varied physiographic regions of the beautiful state of Ohio.
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