Linnaea borealis var. longiflora
This evergreen groundcover has a truly unique form. Growing to only 6 tall, this semi-woody vine spreads by long runners and has many small shiny leaves close to the ground.
Come Summer and a multitude of delicate flower stalks pop up, each adorned with beautiful pink, trumpet-shaped flowers hanging upside-down in pairs (or twins). They are pink and have a wonderful fragrance which some say is as sweet and tentative as almond.
Native from Alaska to Oregon, Twinflower is hardy between USDA zones 2-8.
It prefers partial to full shade and moist, acidic soil.
It is sublime under a planting of Western Azalea (Rhododendron occidentale).