|Red List Category & Criteria:
||Neill, D. & Pitman, N.
||Valencia, R., Pitman, N., Léon-Yánez, S. & Jørgensen, P.M. (Ecuador Plants Red List Authority)
A tree endemic to the Pastaza River valley on the eastern slopes of the Ecuadorean Andes. Discovered by the British botanist R. Spruce in 1858 on the slopes of the Volcán Tungurahua, north of Baños. M. Acosta-Solís collected it in the 1940s and cultivated it as an ornamental in Ambato and Quito. A few individuals were found in 1998 by N. Pitman in pastures on the slopes of the Volcán Tungurahua, near Baños and north of the Hostería Luna Runtun. Subsequently, H. Vargas and L. Jost have found several other populations in both sides of the Río Pastaza canyon and in the buffer zone of the Parque Nacional Llangantes. Currently cultivated again as an ornamental in Quito and Baños. Apart from habitat destruction, no specific threats are known.