lied about the "frequently" part. People rarely ask about this plant. At first glance, it just looks like the kind of fuzzy succulent you see in every drought-tolerant yard around.
Then I snap off a leaf and make people taste it. Ficoide glaciale, or "glacier lettuce," has a lemony, briny taste you don't expect from a land plant. It's not fuzzy at all, but covered with tiny bumps that look like frost and burst open when you bite into it, hitting your tongue with a tiny salt spray.