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 (Ralstonia solanacearum), verticillium wilt, Potato virus X, tobacco etch virus, common scab, and late blight (caused by Phytophthora infestans), and for its frost tolerance and ability to cold acclimate. Genome
Aversano et al., 2015 provides a genome sequence. References

commersonii
Flora of South Brazil
Flora of Uruguay
Flora of Northeast Argentina
Plants described in 1814