In this part of the Marche region (Montefeltro), wheat is the dominant grown crop and the clay soil is not particularly suited for growing anything else. But, as a friend of Silvia, who is an expert in medicinal plants, told me, parts of the region are excellent sources for wild flowers and medicinal plants.

http://eusoils.jrc.ec.europa.eu/esdb_archive/eusoils_docs/other/eur24131.pdf – page 5

During my travels I notice that many edible wild flowers and plants are widespread globally, but there are cultural differences in the selection of these, both for food and medicinal purposes, and this may also have to do with the variation in flavor in the diet (see post June 23). One man’s weed is another man’s vegetable…