This page is a draft, part of our ongoing wild potato project. I’ll probably be adding information to the species pages through 2020 at least, but I’m making them public since they may be useful even incomplete.

Solanum verrucosum

Common Name(s):

Synonyms: S. macropilosum

Series: Verrucosa

EBN: 2

Ploidy: Diploid

Segregation: Disomic

Self-compatible: No

Cytoplasm Type: D, W (Hosaka 2014)


A widespread species in Mexico, where it is primarily a plant of woodlands and cloud forests.  Plants about 6 to 18 inches tall.  Blue flowers.  Round berries. 

This species can survive frosts down to 27 degrees F (-3 C) (Li 1977).

S. verrucosum is suspected as the progenitor of all Mexican polyploid species, based upon the presence of a mitochondrial marker (Sanetomo 2013).

Condition Level of Resistance Source

Glykoalkaloid content



Crosses with S. tuberosum

Watanabe (1991) found that 4.1% of varieties of this species produced 2n pollen, which would be effectively tetraploid and 4EBN.

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

Crosses with other species

Jackson (1999) found 4-11% 2n pollen for varieties of this species.

Female Male Berry Set Seed Set Germination Ploidy Source



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