Are Daviesia and Rehmannia native to the same countries?
Rehmannia Rehmannia is a genus of six species of flowering plants in the order Lamiales, endemic to China.
Sladeniaceae Sladeniaceae is a family of flowering plants containing tree species found in subtropical to tropical environments in East Africa ("Ficalhoa"), Burma, Yunnan, and Thailand ("Sladenia"). The family consists of trees with alternate, simple leaves without stipules, and flowers arranged in cymose inflorescences.