''Solanum pinnatisectum'', the tansy-leaf nightshade or tansyleaf nightshade, is a species of flowering plant in the family

Solanaceae The Solanaceae , or nightshades, are a family of flowering plants that ranges from annual and perennial herbs to vines, lianas, epiphytes, shrubs, and trees, and includes a number of agricultural crops, medicinal plants, spices, weeds, and orn ...

, native to Arizona in the United States, and to Mexico. A

wild potato Wild potato may refer to: * Several species belonging to the genus '' Solanum'' section '' Petota'', such as '' Solanum jamesii'', '' Solanum berthaultii'', etc. * ''Thladiantha dubia'' (not related to potato) * ''Hedysarum alpinum'', a species of ...

, it is being extensively studied for its resistance to '' Phytophthora infestans'' (the cause of late potato blight), in an effort to improve the domestic potato '' Solanum tuberosum''.

References

pinnatisectum Flora of Arizona Flora of Northeastern Mexico Flora of Central Mexico Flora of Southwestern Mexico Plants described in 1852 {{potato-stub