Wikipedia
Kmeria
Kmeria is a genus of tree in the family Magnoliaceae, consisting of 5 species, native to eastern Asia in southern China and Indochina. The species Kmeria duperreana is known for yielding kmeriol.
The genus was previously included in Magnolia, from which it was separated on the basis of its unisexual flowers and ventral mode of dehiscence. It is not accepted in the draft Magnoliaceae account in the Flora of China, where the species are divided between the genera Woonyongia (K. septentrionalis) and Parakmeria (the others).