National Council for The Conservation of Plants and Gardens
National Collection of the Genus Codonopsis and Allied Genera
A lovely end of summer twining climber with a greenish corolla with intricate dark red markings internally. The tips of the petals are strongly recurved and the distinctive calyx resembles an acorn cup in shape. The stems are dark red and the leaves large. The only downside is that this one is slightly tender so best grown either under glass or in a large pot (the tuber gets very large).
The seed is very fine and light brown.
Himalaya from Uttar Pradesh to Bhutan and Assam