Duckweed Websites

Here is a list of some of the duckweed websites I've found useful:

Charms of Duckweed

Wayne Armstrong's treatment of the Lemnaceae

Dr. Wastewater's Duckweed Application Page

Popularity of Lemna over time (as per research papers)

USDA Plants database

Duckweed: A tiny plant with enormous potential for agriculture and the environment