Fumitories
Seems like there are only two in my area but I'm not entirely sure. Also seems like ID is dicey - the fumitory project says they can't ID to species unless very specific photos are taken. However, I think it may be possible with the very limited options in Pennsylvania - I just haven't had time to research.
I"m keeping tabs on references so I can learn in the future. So far I have these:
https://www.inaturalist.org/journal/blue_celery/14150-fumitories-of-north-america
https://naturebftb.co.uk/wp-content/uploads/2021/04/Fumitories-and-Ramping-fumitories-crib.pdf
https://www.inaturalist.org/projects/fumitories-in-the-usa
"Explore" function reveals that Fumaria officinalis makes up the bulk of observations in the NE USA. There are a very few records of Fumaria muralis (Common ramping fumitory). There is a single Schleicher's Fumitory (Fumaria schleicheri) recorded in Maine.
