Tall stem (4+ ft.) with flower and buds nodding at the end. Yellow and orange petals with very dark reddish spots. Growing along a creek.
Bath nature preserve Garden Bowl (restored wetland). Only one plant here, in the higher dryer areas above the typha. Not sure if this was just in the seed mix or what. have not seen it anywhere else on the preserve
Impatiens spp? Large bank of these purple flowered plants, 5-6' tall. Floodplain.
Found growing behind the Susan Hambley Nature Center in the bird feeding area. Mimulus sp? A critter was crawling inside the flower as I was taking a photo. There isn't much of a wing on the stem and the leaves are short-stalked
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.