About Gardneria multiflora Makino
Gardneria multiflora, known as พญารากหอม in Thai, is a flowering plant species in the Loganiaceae family. It is native to north-central China, south-central China, southeast China, Japan, and Taiwan. In its natural habitat, it grows as a creeper in dense forests. It is used as a medicinal plant, with its roots and leaves being the parts most commonly used. Two alkaloids that have been identified from this species are 18-Demethoxygardfloramine and 18-Demethoxygardneramine.