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Where are the Old World carnivorous families Dioncophyllaceae, Drosophyllaceae, and Nepenthaceae found?

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Caryophyllales Pink carnation flowers (*Dianthus caryophyllus*).

Within the order Caryophyllales, the three specified carnivorous plant families are restricted to the Old World with the following geographical distributions:

Dioncophyllaceae: This family, consisting of three species, is found in tropical Africa.1
Drosophyllaceae: This family is represented by a single species located on the Iberian Peninsula.1
Nepenthaceae: Members of this family, known as pitcher plants, are found in a range extending from Madagascar across Southeast Asia to New Caledonia and Australia.12