Yes it is and a name would be nice so we know what we're looking at.

aachenelf z5 Mpls, MN,
I am sorry. I will search for the Latin name of the original species.

Could somebody help?

Kind of looks like a double form of Oxalis. Did a quick search and it rather resembles Oxalis (compressa?) 'Pom Pom'. Not 100% on that ID though...
CMK

How about a double lisianthus?

Wrong leaves and wrong growth habit for Eustoma (aka Lisianthus). Looks like Oxalis 'Pom pom' to me too.

Here is a link that might be useful: {{gwi:209206}}

flora_uk SW UK 8/9
Thank you for your help. I always trust your ID or should I?

mnwsgal 4 Henn MN
I always welcome people who introduce interesting plants. Thank you very much.

That is really cool! Flora is rarely wrong, I'd ask to be paid by the hour if someone wanted me to search for an example. Is this a plant you have in abundance?

christinmk got it first.

:-)

I'm curious...is this species/variety very invasive??
CMK

christinmk z5b eastern WA
sterile.