National Council for The Conservation of Plants and Gardens
National Collection of the Genus Codonopsis and Allied Genera
A twining climber related to C.lanceolata but with smaller leaves and flowers. The slightly squarish bell shaped flower is maroon throughout with a faint bloom on the exterior. The bud is greener than C.lanceolata and the seeds are black and quite large. Like C.lanceolata this species needs ample summer moisture until established.
China, Japan and Korea