Oenothera, Evening Primrose? WW Here is a link that might be useful: Evening Primrose

Not sure. Maybe Ohio Spiderwort?

Dampish?? Any rivers nearby?? In which case it may be Impatiens glandulifera aka Himalayan Balsam. Not many Impatiens it could be where you are. Hold on, are you THE Jarrajim?? Or is that Owld JJ?

Yes, but it was after I posted in this forum, so perhaps the person with the answer started here and went over there to post? I don't know if there's a way to close out a discussion thread, but I should at least state here that, yes, my plant has been identified. It's a Pandanus. The specific species is still under discussion. Thank you to anyone who started here and posted in the Name That Plant! forum.