What species is this lily?
This one...
But then a very small cutting from its rhizome... That way it stays very small for a few years depending on fertilization and light cycle... This actually goes for any lily sp. with a Marliac or Tuberosa rhizome. Cut off a small young plantlet from it's rhizome and plant it in a tank with a clay cone added.
But if you are interested in this specific sp. It's this one sold at Ebay from a German nursery.
https://www.ebay.de/itm/Zwergseeros...111793?hash=item1c46b157f1:g:gggAAOSwQItUIyO0
And this, when it flowered indoors. 🥰 I'm still in love...
https://www.ukaps.org/forum/threads/i-think-i-am-in-love.37099/