Claim: The Christmas berry, Passerina ericoides, is native to the second most populous city in South Africa, Cape Town, aka Mother City and grows pretty but nasty berries that tortoises eat.
Evidence: Colloquially named the Mother City, it is the largest city of the Western Cape province and forms part of the City of Cape Town metropolitan municipality. Cape Town (Afrikaans: Kaapstad [ˈkɑːpstat; Xhosa: iKapa;) is the second-most populous city in South Africa, after Johannesburg, and also the legislative capital of South Africa. Passerina ericoides, the Christmas berry, is a threatened species of plant in the family Thymelaeaceae, genus Passerina. It is indigenous to the coastal fynbos areas in and around the city of Cape Town, South Africa. They taste nasty, but are harmless and look very attractive. Tortoises eat them and presumably spread their seed in their droppings.