Passiflora mexicana, or Mexican Passion Flower, is a native perennial vine that grows 2-8 meters long. Found in thickets near riparian zones and washes from 2,500-4,000 ft (762-1219 m). Flower is green, to yellow-green, the corona red or reddish purple. Pungent odor. Mexican Passionflower is rare in the United States where it is only found in south and southeast Arizona. Flowers July-October. Plant in part to full shade with medium to high water.