I'm posting things I'm trying to learn, so if I have this wrong, please let me know. This seems to be Deer Fern, Struthiopteris spicant, growing in front of an apartment building in my neighbourhood. These photos show the sterile fronds, with the pinnae close together, and fertile fronds, with the pinnae spaced out at least 1 cm apart. The stipes and rachis are almost black. This used to be called Blechnum spicant.