Leucophyllum (barometer bush or barometerbush) is a genus of evergreen shrubs in the figwort family, Scrophulariaceae, native to the southwestern United States and Mexico. It is sometimes placed in the family Myoporaceae. The dozen-odd species are often called 'sages', although they have no relationship to the genus Salvia.
The solitary axillary flowers are bell- or funnel-shaped, with five lobes and two lips, and colors ranging from white to magenta to purple. The generic name is derived from the ...