California
Northeastern United States, Mid-Atlantic United States, Southeastern United States, South-Central United States, Texas, Mexico
Ulva lactuca, Ulva intestinalis
Turtlehead, Leadwort, Aster
9, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24