Not a bee flower. This is Trillium sessile. See that color maroon? That means it is not interested in bee, but interested in flies and beetles, flowers smell bad too. Pictures and specimen from Helen Lowe Metzman

seen from Belgium
seen from Belgium
seen from Belgium
seen from Costa Rica

seen from Canada

seen from South Africa
seen from United Kingdom
seen from Türkiye

seen from Greece

seen from Germany

seen from Argentina

seen from Sweden

seen from Costa Rica
seen from Poland
seen from Philippines
seen from United States
seen from Poland
seen from United Kingdom

seen from Japan
seen from Japan
Not a bee flower. This is Trillium sessile. See that color maroon? That means it is not interested in bee, but interested in flies and beetles, flowers smell bad too. Pictures and specimen from Helen Lowe Metzman