Solanum cheesmaniae, is one of two main species of wild tomatoes found on the Galápagos Islands.
It is a wild tomato that evolved on the famous Galapagos Islands, the place where Charles Darwin noted the structural difference between local finches, iguanas, and barnacles, leading him to identify natural selection as a possible source of the origin of species; he prepared a herbarium sheet of the species on his visit.
It often gets confused with the other native species, Solanum galapagense, which is similar but slightly different having more bushy smelly foliage and having smaller hairier orange fruits.
[1] This tomato is smaller and more pale than the oldest mainland cultivars, both in its fruit and leaves, but its flavor is similar.
There are varying breeds of galapagos tomato, which can be differentiated by one to four-pinnate leaves, and habits of growing on the shore or inland.