I am getting seed for Lycium berlandieri, barbarum, and chinense. Might get Lycium ruthenicum as well. Good amount of Lycium species that were used in Mexico - North America. Only really seem to see things about non-native types. Lycium berlandieri was used for food and medicinal uses. Oh yeah apparently has a life span of 90 years. Solanum sisymbriifolium are also apparently possible. Lot of potential for disease resistances and cold hardiness. Berlandieri does have spines though. There are many more species in the genus as well.