Solanum commersonii
Solanum commersonii is a species of wild potato in the family Solanaceae. It is native to southern Brazil, Uruguay, and northeastern Argentina, and has been introduced to Mauritius. It is a crop wild relative useful in potato breeding for its resistance to root knot nematode, soft rot, blackleg, bacterial wilt, verticillium wilt, Potato virus X, tobacco etch virus, common scab, and late blight, and for its frost tolerance and ability to cold acclimate.