FLUXLIST: Yams vs "yams"

[{ brad brace }]

True yams are a tropical plant that need a long, hot, moist season.  About 
the only areas that true yams can grow naturally in the U.S. is in Hawaii or 
on the southern tip of Florida.  Grocery store "yams" are mis-named sweet 
potatoes.  Sweet potatoes can grow in most of the U.S.
continental states, and are related to the morning glory.