Gem squash (Cucurbita pepo var. pepo)[1] is a variety of summer squash that may have been domesticated from two wild varieties; Cucurbita texana found in the southern and central United States and Cucurbita fraterna found in Mexico.[2] It bears notable similarities to Tatume squash or Calabacita, a Cucurbita pepo variety widely grown in Mexico and parts of Texas with a similar vining or climbing and fruiting habit [3] The dark green spherical fruit, when fully ripe, is about the size of a tennis ball. The young fruit is often harvested before it is fully ripe when it has a more delicate texture flavor.[4]
Gem squash is grown widely in South Africa, and is commonly served as a vegetable, often boiled or baked.[5]