I love when you have a foraging solution to keep invasive plants controled!! By eating it's flowers, less seeds will be produced :))
I'm speaking in this tone because they are terrible here in our riverbanks (not so much here in the south, they are more abundant in the northern region where rainfall is bigger).
There are so many flowers on a mature black locust tree! I think one tree could feed a whole town! But they would have to cut the tree down to get to all those flowers. But at least it means people can eat all the black locust flowers they want to!
I wondered if you had these in Portugal. I was in Trieste, Italy, when they were blooming in the spring a few years ago and was impressed with how many of these trees had taken over hillsides. They look invasive to me!
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This photo is quite impressive, they seem to be invading that hill. Here in Portugal I know they occupy easily riverbanks and think in the northern region (with more rainfall) they are more common. But the best time to distinguish those trees from the others is in its flower period and I haven't done that field trip (yet). I probably should and will do it!!
I hope you can be there in northern Portugal when the black locust trees are flowering. It would small wonderful and you can eat so many flowers ! :D
I already advertise my companion that it would be great to do a trip to the north in the beginning of spring, like the one I did to Lousã this year. It may be a bit awkward, but seeing those invasive plants in flower gives me a better perspective of the area already occupied, and I "need" to calibrate my eyes with that info.