They grow on tree trunks or stumps in Japan, they are long and delicate looking, and they have a delicious but delicate flavor. That's about all I know! Enoki mushrooms just recently made it into my local market, so of course I had to try them.
I'm a bit afraid to cook them, because they are soooo delicate. So far, they've only made it into my salads, but I'm betting that they'd be a nice last second addition to stir fries too. Anyway, I sliced them up a bit before digging in, but I wanted you to see what they look like before slicing. All I've done for this photo is slice them apart near the bottom...they grow in a close cluster.