Besides the leaves under glass this seep also hosts skunk cabbage-Symplocarpus foetidus which I visit most years at this time. For those unfamiliar, these are the flower buds which precede leafing out and create their own heat so are often seen poking through ice. The broken leaves do give off a smell similar to skunk spray.
I may have photographed this same clump last year or not. It looks a bit like this share from last February. Sometimes they are multicolored and other times just green.