Thanks for all the replies. What I've found on the Internet seems to indicate that the leaves of grocery store sweet potatoes are edible, as excerpted below - Judy, who recently served Hemerocallis fulva shoots (leaves not yet unfolded) and garden-gathered fiddleheads ----------------------------------------------------------------------------------------------------------------------------------------------- Few people in North America think of sweet potato leaves as a food crop. My friend and colleague, Dr. Changzheng Wang, grew up in a peasant farm family in rural China, where sweet potato leaves were a regular part of the menu. On the third Thursday of every month Kentucky State University hosts a full day of hands-on workshops on sustainable agriculture. Dr. Wang took advantage of today's 'Third Thursday Thing <http://organic.kysu.edu/ThirdThursday.html>' to demonstrate the harvest and preparation of sweet potato greens. He collected the tender young leaves from the rapidly-growing sweet potato vines in our Energy Farm study, and stir fried them with a little soy sauce and ground beef. Delicious! --------------------------------------------------------------------------------------------------------------------------------------------------- from FAO (Food and Agriculture Organization) of the United Nations Leaflet No. 13 - 1990 - Sweet Potato *The leaves* The young leaves and tips are prepared by boiling for a short time in a small amount of water. Serving or cooking sweet potato leaves with a lime fat, such as coconut cream, helps the body use the Vitamin A that is in the leaves. They may also be fried in a covered pot in a lime cooking oil. Onion and garlic may be added for flavour. They are a good addition to soups and are an excellent food for babies, pregnant women, and breast-feeding mothers. ----------------------------------------------------------------------------------------------------------------------------------------------- Fit & Healthy, posted November 6, 2006 According to a new research from the /University of Arkansas/ <http://www.uark.edu/home/>, sweet potato leaves are chock-full of disease-fighting antioxidants. In total, they contain 15 different compounds that could help prevent heart disease, diabetes, infection and some types of cancer. Out of curiosity, I asked for sweet potato leaves at my local grocery store. I was ready for some blank stares, but to my surprise, I was not a first person to inquire about them. Who could have thought that the word about potential health benefits of sweet potato leaves could spread so quickly? Or maybe I am behind the times... Anyway, sweet potato leaves are just as versatile and easy to prepare as sweet potatoes. You can steam them as you would spinach or other leafy greens. /Men's Health/ recommends to sauté them with onions, garlic, and ginger. Then add your favorite veggies, along with beef, chicken, or shrimp. ----------------------------------------------------------------------------------------------------------------------------------------------- And a .pdf of edible leaves of vegetables grown for tubers or fruit http://agroforestry.net/pubs/…