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I’ve spoken to many naturalists about this one all of whom unanimously agree this is indeed American Chestnut. This is the first documented one in Minnesota that has a possibility of being native origin. There were a few saplings in the clearing in the middle of this SNA, pin should be spot on. Being out of range means that this is either a disjunct or unintentionally planted by a migrant animal or a person, being off the trail and in a weird spot makes me question where it came from.

UV Bee Vision
Shot by a full spectrum camera with UV pass + IR block filters stack

According to studies, bees are extremely attracted to bluebonnet's florets with white "banner" because bees can collect a large quantity of high-quality pollen.
As the florets get older, the white banner change to purplish color and the bees are much less attracted to them. As you can see on the first picture, taken by a full spectrum camera with UV bandpass “bug filter”, the floret with purplish banner is not UV reflective, in black color, which is "invisible" in bee's eyes.
"In a paper published in The Southwestern Naturalist [1], Schaal and Leverich found that bees can collect up to 150 times more pollen from a white spotted floret than a purple-spotted one. Other research has revealed that nearly all pollinator visits (about 96%) were to the florets with white spots."~"Can A Texas Bluebonnet change its spots? - Honey Bee Suite"

Growing under an old white pine in sandy soil.There are also quaking aspen and cherry sprouts in the same area. There were over 20 flowering stems in this location. Otherwise uncommon. On a subsequent visit two days later I observed a bumble bee nectaring at these flowers -see photo.

Soon to be separated into the genus Hypopitys. This appears to be the common eastern pinesap, which has no specific epithet at the time of writing. In Weakley's Flora of the Southeastern United States 2022, it is listed in key as Hypopitys species 3.

The was not part of the Ikea plantings. It was in a wild bed of weeds right on the waterfront.

I assume that a plant mosaic virus was what caused some leaves of this Ampelopsis brevipedunculata, the porcelain berry vine, to appear variegated?

(Most of the leaves on this plant were not variegated, see the second image and the observation here:)

http://www.inaturalist.org/observations/7195428

Young plant in pachysandra. I don't know why the leaves are white and green -- variegated. No herbicide has been used here. It is interesting that most of the leaves have been chewed by something. Perhaps this plant does have a few enemies. I hope so.