Are Stachyurus and Corylopsis both native to eastern Asia?
Corylopsis Corylopsis is a genus of nearly 30 species of shrubs in the witch hazel family, Hamamelidaceae, native to eastern Asia with the majority of species endemic in China but with some also in Japan, Korea, and the Himalayas. This genus is also known from the extinct species "Corylopsis reedae" described from Eocene leaf fossils found in Washington State, USA.
Agrostistachys indica Agrostistachys indica is a species of plant in the family Euphorbiaceae, known in Singapore as the leaf litter plant. The species is widespread across much of Southeast Asia as well as New Guinea, India, and Sri Lanka.