Figure 11.2 The geographic range of Fremont’s leather flower. A 1945 survey found that this shrub species was only found in three counties in the state of Missouri. Within this range, individuals were only found living in outcroppings of limestone, known as glades.

Data from R. O. Erickson, The Clematis fremontii var. Reihlii population in the Ozarks, Annals of the Missouri Botanical Garden 32 (1945): 413–460.