Thanks for helping, everyone! My mystery plant from yesterday, the one creeping along the upper shore of Okanagan Lake…

… is no mystery. It is cleavers:

Cleavers is a sister of coffee, native to the circumpolar north. Her seeds can be (and have been) roasted and ground into a caffeinated brew. Think of that in terms of local food culture! Another new agricultural crop for the Okanagan. Plus, you can stuff a mattress with it! Well met!