Psittacanthus angustifolius is a species of hemiparasitic plant in the family Loranthaceae found in Guatemala, Honduras and Mexico.

[1] In August 2000, it was found on Psidium guineense 5 kilometres (3.1 mi) north of Yamaranguila, Department Intibuca of Honduras.

In November of the same year, it was found on Pinus tecunumanii which was growing 4 kilometres (2.5 mi) north of Opatoro, Department La Paz.

[1] Brian E. Howell, Robert L. Mathiasen (March 9, 2004).

"Growth impacts of Psittacanthus angustifolius Kuijt on Pinus oocarpa Schiede in Honduras" (PDF).