Genes required for chromosomal small RNA are missing in certain duckweed species. This may explain the emergence of vigorous inter-species hybrids with three, rather than two, copies of each ...

Now, Mankai (also known as duckweed or watermeal and scientifically ... on postprandial glycemic response among patients with type-2 diabetes: A randomized crossover trial.” ...

Under the right conditions, duckweed essentially farms itself. Wastewater, ponds, puddles, swamps—you name it. If there's enough sunlight and carbon dioxide, the aquatic plant can grow freely.