I have read that some scientist are trying to use duckweed as a source of biofuels instead of algae.I'm guessing because duckweed is basically worthless $$ wise while buces actually cost a good amount of $$
Here you go:I would suggest listing the other plants as I am sure they would be more desirable than duckweed, which is a plant that is often given away for free on these forums. Hope you get what you're looking for!