Erythronium grandiflorum
Wow, sometimes you get a gift. I did not plant this, but about ten years ago I planted the Cinquefoil seed that contributed the plant in the background. A few years later, a single leaf blade came up beside the Cinquefoil. It looked like a bulb of some kind, so I didn't mess with it, but I sure wondered what it was. For the last 5-6 years, it has just been that leaf, but today I went down to check on things and... it's a Glacier lily! One of those native plants that you really cannot dig and move, so you just have to enjoy them where nature decides to share. I feel very lucky!