That I photographed, anyway. (Unless I missed some in the 386 photos I took during the month.)
There seems to be a disagreement between one of my favorite wildflower sites from British Columbia which calls the next flower “False Solomon’s Seal” and the USDA Plants site which calls it “Feathery False Wild Lily of the Valley”. (I’ll stay out of that dispute, but whatever they’re called, these were the prettiest of that species that I’ve seen!)
False Solomon’s Seal, or, False Wild Lily of the Valley, maianthemum racemosum
This group photo also includes a stalk of Western Groundsel,
whose seed head looks like this.
And the Western Mountain Aster, Symphyotrichum spathulatum.