Thanks, MudGuard. I had hoped you would come in to save the day.
So, we know now that Schneewurz isn't a sedum, but I have to say something about sedums anyhow because some of my favorite wildflowers are sedums. They are leaf succulents, so their leaves are often puffy with the water they store. There are two succulents are Stonecrops in the American River Canyon below us, and I love them both. One is the Canyon Dudleya (not a sedum) an orange, rock-growing plant with fairly insignificant flowers. It grows in cracks in granite, where you just wouldn't imagine a plant could grow. Pacific sedum grows in similar terrain and has puffy leaves and showy yellow flowers.
Every flower I come across has stories behind it, and most flowers have multiple names. Wildflowers are wonderful mysteries to explore. I'm a rank amateur, but the two women who invited us on the Botanische Woche in Zermatt are real professionals who have written fascinating flower books. It's a thrill to take flower hikes with them.