Hi @claudioflamigni, iNaturalist has actually switched to using Plants of the World Online as a global authority for vascular plants. There are cases we can explicitly deviate from POWO, but there is a protocol for doing so. You can read more about it here: https://www.inaturalist.org/projects/inaturalist-vascular-plant-working-group/journal/18353

Plants of the World Online currently accepts Cicerbita alpina: http://www.plantsoftheworldonline.org/taxon/urn:lsid:ipni.org:names:194423-1

Lactuca alpina is not listed in POWO: http://www.plantsoftheworldonline.org/?q=lactuca%20alpina

Hi @claudioflamigni @bouteloua, species in this group are now listed under Cicerbita and Lactuca. Following iNat's policy to adopt POWO's taxonom, I'll swap those currently listed under Lactuca with Cicerbita despite https://europlusmed.org accepting the former combination.