Buddleja lojensis is a species endemic to the Loja region of southern Ecuador, and Piura in Peru, where it grows on mountains, savannahs and scrub, notably near streams, at elevations of 1,600 â 2,550 m. The species was first identified and described by Norman in 1982.
Buddleja lojensis is a dioecious shrub 1 â 3 m tall with yellowish bark. The young branches are subquadrangular, almost glabrous, bearing subsessile ovate or lanceolate leaves 7 â 10 cm long by 2.4 â 4 cm wide, membranaceous, glabrescent above and below. The pale yellow paniculate inflorescences are 7 â 15 cm long by 4 â 9 cm wide, comprising 2 â 3 orders of leafy-bracted branches bearing small cymules of 5 â 10 flowers, the corollas 2.5 â 4 mm long.
The species is not known to be in cultivation.