This is my absolute favorite leafy green in Italy and I've never seen it in the States. It goes by many names, but Valeriana or some variation of that is supposedly the correct name. (I've lived in different regions of northern Italy and it was called by a different name in each region) It is dark green, the color of spinach, has round, clustered leaves, and isn't as bitter as rucola and some other greens. there's a pic at this web site...
http://www.giardinaggio.it/orto/singole ... anella.asp
has anyone grown this in the US or seen it here?