2n = 2x = 24 voucher: Ochoa & Salas 14870 (CIP) (Hijmans, et al. 2007)
Solanum mochiquense occurs in Peru (Depts. Ancash, Cajamarca, La Libertad, Lambayeque, Lima and Piura), in two disjunct habitats, in lomas on the coast from 150-800 m in elevation and in dry rocky soils on the mountains from 1170-3000 m.
Solanum mochiquense is a member of Solanum sect. Petota Dumort., the tuber-bearing cultivated and wild potatoes. Within sect. Petota, Solanum mochiquense is a member of a distinctive clade of southern Ecuadorian and Peruvian species formerly classified in series Piurana and some other series that frequently possess moniliform tubers and shiny coriaceous leaves, although this species lacks moniliform tubers. On a higher taxonomic level, it is a member of the informally-named Potato Clade, a group of perhaps 200-300 species that also includes the tomato and its wild relatives (Bohs, 2005).
Solanum mochiquense is a very distinctive wild potato species with its combination of coriaceous and glabrous leaves, which are particularly shiny and dark green. It is most similar to S. cajamarquense, also from Peru, which is a very pubescent plant.
Bohs, L. 2005. Major clades in Solanum based on ndhF sequences.
Pp. 27-49 in R. C. Keating, V. C. Hollowell, & T. B. Croat (eds.), A festschrift for William G. D’Arcy: the legacy of a taxonomist. Monographs in Systematic Botany from the Missouri Botanical Garden, Vol. 104. Missouri Botanical Garden Press, St. Louis.
Hijmans, R., T. Gavrilenko, S. Stephenson, J. Bamberg, A. Salas & D.M. Spooner 2007. Geographic and environmental range expansion through polyploidy in wild potatoes (Solanum section Petota).
Global Ecol. Biogeogr. 16: 485-495.