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 clarum

Common Name(s):

Synonyms: none

Series: Morelliforme

EBN: Unknown

Ploidy: Diploid

Segregation: Disomic

Self-compatible: No

Cytoplasm Type: Unknown


A species primarily of northwest Guatemala, where it forms dense colonies in pine and fir forests, reaching slightly into Mexico.  Plants roughly one half to one foot tall.  Leaves are simple, unusual for a potato. 

Condition Level of Resistance Source
 Bacterial Wilt Somewhat resistant  Machida-Hirano 2015
 Colorado Potato Beetle  Somewhat resistant  Machida-Hirano 2015
 Aphids  Somewhat resistant  Machida-Hirano 2015
 Potato Cyst Nematode  Somewhat resistant  Machida-Hirano 2015

Glykoalkaloid content


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


Crosses with S. tuberosum

Female Male Berry Set Seed Set Germination Ploidy Source

Crosses with other species

Watanabe (1991) found no varieties of this species that produced 2n pollen.

Female Male Berry Set Seed Set Germination Ploidy Source



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