Passiflora viridescens is a plant species native to Peru and Ecuador.Brako, L. & J. L. Zarucchi. (eds.) 1993. Catalogue of the Flowering Plants and Gymnosperms of Peru. Monographs in systematic botany from the Missouri Botanical Garden 45: i–xl, 1–1286.Jørgensen, P. M. & S. León-Yánez. (eds.) 1999. Catalogue of the vascular plants of Ecuador, Monographs in Systematic Botany from the Missouri Botanical Garden 75: i–viii, 1–1181. Missouri Botanical Garden, St. Louis.
Passiflora viridescens is a woody liana climbing over other vegetation to a height of over 8 m. Leaves are broadly lanceolate to ovate, up to 14 cm long, forming three points at the tip in a W-shaped pattern. Flowers are up to 10 cm in diameter, light green with purple styles. The fruit is elliptical to egg-shaped, up to 6 cm long, green with minute hairs.Jørgensen, PM, & JM MacDougal. 1997. Three new species of Passiflora (Passifloraceae) and notes on Passiflora viridescens. Novon 7:379-386Escobar, Linda Katherine Albert de. 1989. Two new species of Passiflora (Passifloraceae) from South America. Phytologia 66:80-82.photo of holotype of Passiflora viridescens at Missouri Botanical GardenSchwerdtfeger, Michael, 1997. Haussknechtia 6: 46.photo of isotype of Passiflora ulmeri at Missouri Botanical GardenField Museum Amostras de Herbário da Neotrópica
References