Well, it's been a little over 2 months, by a couple/few days.
I sowed some U. arenaria seeds back in Feb. and now they're flowering!!! I was shocked by their rate of growth, and the shape of their leaves. These guys' leaves are much pointier and longer than the parent plant's leaves.
There are no other types of utrics in there, I'm sure.
This is a pot of about 7 different clones:
And some S. leucophylla (tarnok... ) flower buds:
I will have more U. arenaria seeds in a few weeks...