|Red List Category & Criteria:
||Santiana, J. & Pitman, N.
||Valencia, R., Pitman, N., Léon-Yánez, S. & Jørgensen, P.M. (Ecuador Plants Red List Authority)
A treelet endemic to Ecuador, where it is known from a single collection recorded in 1898 by L. Sodiro, on the banks of the Río Pilatón, Pichincha province. Based in its phylogenetic affinities to P. obovatum and P. cajambrense, the species likely prefers wet habitat in the forest understorey and along riverbanks. May occur in the Bosque Protector of the sub-watersheds of Río Toachi and Río Pilatón. No specimens of this species are housed in Ecuadorean museums. Apart from habitat destruction, no specific threats are known.