In Mannheim's main cemetery I found two smaller and one larger feral populations of the hybrid Galanthus elwesii x nivalis.
From Galanthus elwesii they have e.g. larger flowers and the second green ring on the inner petals, as well as wider leaves.
The influence of Galanthus nivalis can be seen e.g. in the fact that the leaves are not as wide and flat
as those of pure Galanthus elwesii, and also the 'hood' at the upper end of the leaves is weaker.
The hybrid populations found make an older impression and are apparently capable of reproduction (at least via daughter bulbs
since in the cemetery the infructescences are mown early). Today it's no more possible to say whether hybridization occurred in situ,
or whether the hybrid populations are descended from previously planted hybrids.
In some distance there are in the cemetery also small numbers of pure Galanthus elwesii
and at many places large numbers of Galanthus nivalis found growing wild, of the latter both normal-flowered ones and large-flowered horticultural varieties.