Rose mallow (Hibiscus moscheutos) is a spectacular wildflower, with multi-stemmed plants growing 6 feet tall and covered with dessert-plate sized flowers. Large populations grow along the banks of the Charles Rivers, with over a thousand plants at one notable location.
This striking floral variation is almost certainly genetic, as all of the flowers on a plant will share the same characteristics of color, presence or absence of the red center, flower size, and petal orientation.
There is also variation in leaf color with some plants producing bronze colored leaves.
This species seems tailor made for studies of pollination ecology, genetics, and evolution.