Google says lots of things.
Google can lie!
I check, check and double check.
We grow Muscari armemiacum here with many named cultivars...but Muscari botryoides also.etc..
my knowledge doesn't know how to id one from the other.
In UK we have a famous charity called "the Woodland Trust."
I was searching for accurate images of Frangula alnus to double check my id.
On Woodland trust site 3rd pic it showed the flowers.
Sadly not of Frangula but Cornus!
On the screen of Frangula alnus flowers I can see Cornus, honeysuckle and bird cherry!
Hey ho !