Trigastrotheca is a genus of flowering plants belonging to the family Molluginaceae.

Its native range is Tropical and Subtropical Asia to Pacific.

Species: Trigastrotheca molluginea F.Muell. Trigastrotheca pentaphylla (L.) Thulin Trigastrotheca rupestris (T.Cooke) Sukhor. Trigastrotheca stricta (L.) Thulin

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