Solanum trifidum (trifidum means divided into three and probably refers to the leaflets) is native to the states of Michoacan and Jalisco in Mexico, where it is primarily found in pine and oak forests and as a weed of cultivated fields. Plants range from just a few inches to about three feet tall. Tubers reach about an inch in diameter and are white or bluish. White flowers. Berries are unusual, very long and tapering.
Jarvis (2008) predicts that this species will lose 85% of its present range by 2055 due to climate change, most likely entailing a critical loss of genetic diversity.
Pelletier (1999) found that Colorado potato beetles have increased adult and larval mortality and low egg production on this species.
|Condition||Type||Level of Resistance||Source|
|Colorado potato beetle||Somewhat resistant||Pelletier 1999|
|Golden nematode (G. rostochiensis)||Invertebrate||Somewhat resistant||Castelli 2003|
|Late Blight||Fungus||Somewhat resistant||Bachmann-Pfabe 2019|
|Potato Cyst Nematode (G. pallida)||Invertebrate||Somewhat resistant||Castelli 2003|
|Potato Cyst Nematode (G. pallida)||Invertebrate||Somewhat resistant||Bachmann-Pfabe 2019|
Crosses with S. tuberosum
|S. tuberosum||S. trifidum||None||None||Jackson (1999)|
|S. trifidum||S. tuberosum||None||None||Jackson (1999)|
Crosses with other species