Forum Flora Germanica

Named as M .a. because 'muscari white' googles almost all of images as that.
Not planted, came here with wind from somewhere, cultivated urban area. Single specimen.
Any other suggestion (maybe yellowing at flower tip means something)?
http://agrozoo.net/jsp/Galery_one_image ... fc9336ebd1

Muscari cannot be identified by image searches over the internet.