FLORA OF VIETNAM Rutaceae Clausena austroindica Stone et Nair?
Quang Binh Prov., Minh Hoa Distr., Thuong Hoa Comm., Ban On Vill., Pa Nun Valley, at point 17°40′22″N, 105°58′22″E, 250-260 m.
In rather open places of heavily logged primary, sometimes in secondary closed evergreen broad-leaved forests on foot and lower part of slopes of limestone mts.
Undershrub, up to 1-1.5 m tall. Leaves very fragrant, used as spice. Flower buds shorthly oblong. Flowers white. Rare.