Greetings,
Brand new poster so I am not sure if commercial links are ok, however, I just noticed one above for the Kiwis so I am going to link you all to what I see here now.
If it is Liverwort,
You will find more results under that . Here is a tinyurl to just one:
http://tinyurl.com/7fyzqjm
seems pretty clear to me now why we are not finding so many seeds out there - tis because this one looks like a creeper, not a seeder!
There are some forms of Chamomile who do the same thing (English)
I hope that this helps. (I can not help with the assay, but if more of us figure out how to propogate this gem then we may be able to work on that together!)