Smooth cucumber (Wild cucumber, ulcardo melon, native gooseberry)
Cucumis melo ssp. agrestis

It is native to Asia and Australia Wild cucumbers grow in all Australian states except Victoria and Tasmania and has long been a well-known bushfood for aborigine, especially those living in the outback. Australian wild cucumber grow as creeping shrubs after good rain. The plants are sensitive to frost and need a lot of sun and water. Smooth cucumber fruits are 4 to 5 cm long and thick, often they look almost round. Its skin is slightly lighter in colour than that of cultivated cucumbers. While the skin tastes very bitter, the flesh is sweet and refreshing and reminds of cucumbers and mint. Wild cucumbers are barely grown commercially, in tropical and subtropical regions it is easy to grow them in the garden though.