| Impact Description | Yellow iris (Iris pseudacorus) may be a competitive threat to native irises, including I. brevicaulis (listed as threatened in Ohio), I. cristata, I. lacustris (endemic to the Great Lakes), I. robusta [versicolor x virginica] (endemic to the Great Lakes), I. setosa, I. verna (listed as threatened in Ohio), I. versicolor, I. virginica, and I. virginica var. shrives. |