I posted Three ferns for ID three years ago, and two of them were ferns I've been wondering about for a while in the West End. I finally came up with some names, two of which were in that posting. Maybe this time I'll learn them. I'll be happy to be corrected on the name of this, but I really think I have it - Matteuccia struthiopteris - Ostrich Fern. I found the descriptions on this page really helpful: Tangled Web: Ostrich Fern (Matteuccia struthiopteris). This first group of photos is from June 5. Of note are the deeply grooved stipe and the bottom pinnae sort of clasping it. These are from today, July 30. I don't know if the leaves are supposed to get brown and dried-looking, but it really helps to see the structure. And today, there are fertile fronds. I wasn't initially sure that's what they were, so took the last photo to show what new baby fronds look like.