Yes it’s edible. All brassicas are. Whether it’s palatable and how it’s eaten are up to you to decide.

Thalictrum lucidum

while closing the link ... i note that purslane is a portulaca.. go figure.. considering the other post on purslane.. maybe its this years pokeweed.. lol ... btw... i kill my weeds with a vengeance and a hatred as hot as a million burning suns ... other peeps eat this particular weed ... if it is purslane ... ken

I don't think it's felted enough for C montana. Also the habit appears too upright and the leaf/stem junction is wrong imo.