Fig 1. Grains of the California weedy rice ecotype and the southern weedy rice ecotypes.

California weedy rice (top panel) with representative strawhull (bottom left) and blackhull (bottom right) weedy rice ecotypes. California weedy rice has straw to golden colored hulls and long straw colored awns. Strawhull weedy rice has short to no awns and straw colored hulls. Blackhull weedy rice has long, dark awns with a dark hull color. All three ecotypes have the characteristic red colored pericarp (wherein weedy ‘red’ rice derives its common name).