This is just an anecdote:
I love a potato salad with Purslane (Verdolaga in Spanish).
In Europe I knew a variant that we call postelein - see here:
https://en.jardin-planet.com/17827588-postelein-cultivation-care-and-use
It seems to be rare today in my native Holland, and it is considered a 'forgotten' vegetable.
The version I find here mostly in Mexican or other Latino stores, is Verdolaga, or Purslane.
The version I find here has smaller, and thicker leaves and heavier stems.
https://www.almanac.com/purslane-health-benefits-and-recipes
I posted here before my favorite recipe, with this style of Purslane/Verdolaga:
https://starlingaveplantbased.blogspot.com/2024/08/econo-wfpb-3-fingeling-potatoes-with.html