This is wild cucumber (Echinocystis lobata), a native vine that is quite widespread this year possibly because of the abundant rainfall we've had in this part of the country. Wild Cucumber can create very dense, large patches, seeming to smother everything it covers but rarely doing much actual damage. In late summer it's easy to spot even at 60mph, the numerous flowers giving a light green hue to often darker green supporting vegetation.

Here's more information about the plant: https://www.minnesotawildflowers.info/flower/wild-cucumber