Polylepis incana Humboldt, Bonpland, and Kunth A flowering branch B flowering branch C stipule sheaths D bark E leaves F lower leaf surface G upper leaf surface H flower. Scale bars: 1 cm (A, E–G); 2 cm (B); 5 mm (C); 2 mm (H). Photographs A, C–H E.G. Urquiaga F B J. Chambi.