From last week's walk. Colchicum autumnale, the English name is Autumn crocus though it isn't a crocus. In Dutch this is Herfsttijloos, meaning something like "autumn timeless" because it flowers in autumn and bears fruit in spring.
@wim_v12e Hi there, actually the flower on your pictures is a Crocus and not a Colchicum. This last one should have 6 stamen and a simple 3-pointed whitish stigmata, whereas your photo show only 3 stamen but more important a very bright multi-branched orange stigmata that is the sign it is clearly a Crocus. There are some fall flowering ones, less known than the spring flowering ones. If you are in western Europe I would suggest Crocus nudiflorus. And this is a very common mistake