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Common Name(s)  
Code hjt
Synonyms S. fendleri var. physaloides, S. leptosepalum, S. matehualae
Clade 1+4
Series Longipedicellata
Ploidy Tetraploid (4x)
Self-compatible Probably
Cytoplasm Type D (Hosaka 2014)


Solanum hjertingii (hjertingii in honor of Danish botanist Jens Peter Knudsen Hjerting) is a northern Mexican species, primarily Coahuila and Nuevo Leon.  Small plants, reaching about 7 to 14 inches tall.  Violet flowers.

Vega (1995) found that this species is less frost tolerant than domesticated potato.

Condition Level of Resistance Source
Soft Rot / Blackleg Somewhat resistant Machida-Hirano 2015 
Tuber Blackening Somewhat resistant Machida-Hirano 2015 

Glykoalkaloid content




I have found seeds of this species easy to germinate using the standard conditions for S. tuberosum.


Crosses with S. tuberosum

Female Male Berry Set Seed Set Germination Ploidy Source
S. tuberosum S. hjertingii Low None     Jackson (1999)
S. hjertingii S. tuberosum None None     Jackson (1999)

Crosses with other species

Watanabe (1991) found that 9.1% of varieties of this species produced 2n pollen and Jackson (1999) found 6-21%, which would be effectively octaploid and probably 4EBN.

Female Male Berry Set Seed Set Germination Ploidy Source


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