Myrcianthes oreophila is a species of tree in the family Myrtaceae. It is native to Peru and also probably Bolivia.
Tree 5âÂÂ15 meters high, with a beige or reddish flaky bark. Vegetative buds and young branchlets are covered in white tiny hairs. Petioles are short and stout, 2.5âÂÂ4 mm. long, 1-1.5 mm. thick. Leaves are ovate to orbicular or reniform, rigid, 1âÂÂ4.5 cm long, 1âÂÂ3 cm wide. Inflorescence is a three-flowered dichasium, or just a single flower; calyx-lobes deltoid, blunt-tipped, 3.5âÂÂ4 mm. wide at base, about 3.5 mm. long, externally covered by tiny coarse hairs; petals 4, obovate, about 7 mm. long; stamens about 150, up to 8 mm. long; style glabrous, 7âÂÂ8 mm. long.
Myrcianthes oreophila grows in humid or subhumid Andean montane forests of southern Peru, between 2500 and 4000 meters above sea level. It has been reported from the Peruvian regions of Apurimac and Cusco, although there is a report from Bolivia. It's an indicator species of mature vegetation.