Mulberry

I noticed today a few little wiggly type flowers on our Mulberry Twigs/Trees/Bushes, so I took a photo.
Strange looking things.
I ordered a Mulberry from a company to be sent to us & a Twig with 3 leaves on it arrived & was not a happy bunny, so I complained & they sent me another one, this time it was a stronger looking twig with little branches growing off of it with more than 3 leaves on it & now they both have these little wiggly flowers on them. :)