I am very interested in North American native hibiscus and am have difficulty in finding information about Hibiscus palustris and incanus. I know that both of these name are no longer valid and considered to be Hibiscus moscheutos. But at some point in time some botanist thought they were different, so I would like to know what the features were for each of these two plants, that convinced botanist that the plants were different.
Wise DL and Menzel MY. Genetic affinities of the North American species of Hibiscus sect. Trionum. Brittonia, 1971, 23, 4, 425-437. H. incanum: leaves entire, ovate to lanceolate, tomentose (velvety); flowers white. H palustris: leaves entire, cordate to slightly 3-lobed, glabrous above; flower pink.
