Unknown bulb

[Afloden]

 Here is something that flowered last week in my garden that I have no clue what it is. My first impression was that it was in the Hyacinthaceae. No label is near it that would make sense as most things in the bed are Allium, Bellevalia, Muscari, and some Gladiolus. The leaves are U-shaped and shiny green. I assume it came in with some seed of something else.

 Aaron
 

 

[arisaema]

Could it be an immature, white-flowered Brimeura amethystina?

[olegKon]

Or Hyacinthoides non-scripta (white form)?

[Afloden]

Bjornar,

 Thanks! I was trying to think of that other genus. I did throw out an old seed pot of ungerminated Brimeura fastigiata three years ago. The seed pot sat for two years before that. It must have been a white form of amethystina.

 The Hyacinthoides is far too large and it flower a few weeks ago. Thanks.
 
 Aaron