According to the RHS, this is not a recognised name (12/05/16). Our supplier informed us that: "...what we know about this variety is that it was developed in the 1940's in Czechoslovakia by a Jaroslav Homola who was a well know tomato breeder and was a cross between Mikado, Slava Poryni (Rheinland Glory) and Solanum Racemigerum. Stupicke ( Stupice) is an area near Prague. Two varieties were created in 1955 - Stupicke Polni Rane (early field Stupicke) and in 1954 Stupicke Skelikove (greenhouse Stupicke). From Czechoslovakia, they arrived in North America in 1976 (along with some other tomatoes from Milan Sodomka who named the variety Stupice (rather than Stupicke). It is now available under both names -Stupicke polni rane is the czech name and Stupice Field early the English translation."

The fruit is not toxic but the leaves and stems are due to the presence of the alkaloid tomatine , which can cause vomiting and diarrhoea.