Message-ID: <1387477679.43400.yahoomail...@web184906.mail.gq1.yahoo.com>

Does anyone know how to discern a yam from a sweet potato?  Thanks

The tubers you see in the grocery store are not medicinal.   The medicinal yams 
are Dioscorea villosa, native to Eastern US and not that hard to grow, it has 
heart-shaped leaves.  It's probably easier to buy some tubers from a reputable 
source than to try to find it wild.  There is also a Chinese one, Dioscorea 
batatas, which is tastier as an edible tuber but not as medicinal.  They both 
make tiny tubers in leaf axils during the growing season which can be planted 
to make new plants.

Nancy