This member of the Ericaceae family was given this name by Albert Charles Smith in 1935. It is found in Bolivia, Colombia, Costa Rica, Ecuador, Nicaragua, Panama, Peru and Venezuela, growing as an epiphyte on trees or rocks, or in a well drained soil with some to lots of water and little to lots of sun. The caudex can grow to 100 centimetres in diameter, the entire plant from 60 to 200 centimetres in height with additional six metres vines, or as a little tree! The flowers are red with a slim white edge.
The genera name after John Maclean, 19th century Scottish merchant who exported plants from Lima, Peru. The species name from Latin; rupes; rock and the ending means; 'living among'. The flowers by Alfredo F. Fuentes, Tropicos.com.

