Thorny Cucumber * Gifkomkommertjie * Cucumis Myriocarpus ssp. Myriocarpus

Afrikaans
bitterkeboe
gifappel
gifkeboe
gifkomkommertjie
wildekomkommer

English
Gooseberry Cucumber
Small Thorny Cucumber
Small Wild Melon
Thorny Cucumber

Sources:
(*) https://www.inaturalist.org/taxa/598574-Cucumis-myriocarpus-myriocarpus