|Synonyms||S. brachistotrichum, S. jamesii, S. nayaritense|
Solanum stenophyllidium (stenophyllidium meaning narrow leaves) is a Mexican species, ranging from central Mexico north almost to the US border. Highly variable in size and form. Plants range about 9 to 27 inches tall. Long, thin leaves, similar to many of the Mexican dryland species.
|Condition||Type||Level of Resistance||Source|
|Early Blight||Fungus||Somewhat resistant||Jansky 2008|
|Frost||Abiotic||Somewhat resistant||Machida-Hirano 2015 (as S. brachistotrichum)|
|Late Blight||Fungus||Somewhat resistant||Bachmann-Pfabe 2019|
|Potato Cyst Nematode (G. pallida)||Invertebrate||Not resistant||Bachmann-Pfabe 2019|
|Potato Virus Y||Virus||Not resistant||Cai 2011|
|Soft rot (P. carotovorum)||Bacteria||Not resistant||Chung 2011|
Bamberg (2017) found a 56% increase in seed set in this species with supplemental applications of liquid fertilizer at four and seven weeks after potting.
Towill (1983) found that seeds of this species stored at 1 to 3 degrees C germinated at 40% after 8 years.
Trapero-Mozos (2018) determined that this species will tolerate a temperature of 40 C even without prior acclimatization to warm temperatures.
Crosses with S. tuberosum
|S. tuberosum||S. stenophyllidium (as S. brachistotrichum)||None||None||Jackson (1999)|
|S. stenophyllidium (as S. brachistotrichum)||S. tuberosum||None||None||Jackson (1999)|
Crosses with other species
Watanabe (1991) found that 25% (although only 2 plants) of varieties of this species (as S. brachistotrichum) produced 2n pollen and Jackson (1999) found 7-13%, which would be effectively tetraploid and 2EBN.