Walking along the woods’ edge on Rico Road this morning, I glimpsed a pair of huge white flowers with purple centers, perhaps four inches across, on a vine with heart-shaped leaves. The flowers were at head height, on a vine hanging from tree branches. They looked like blooms that belonged in a tropical rainforest somewhere.
A member of the morning glory family (Convolvulaceae), the Wild Sweet Potato (Ipomoea pandurata) is native to much of the Eastern United States, despite it exotic appearance. The bulb of the vine is described by an Illinois wildflowers website as being “edible (barely) when cooked”, and was evidently eaten by Native Amerindians, according to the same source. Cooking was clearly essential; the Peterson Field Guide to Edible Wild Plants of Eastern and Central North America notes that roots have purgative properties if eaten raw.
For my own part, I think I will be satisfied with appreciating the stunning flowers.