National Council for The Conservation of Plants and Gardens
National Collection of the Genus Codonopsis and Allied Genera
A plant that we first saw in Ron McBeath's nursery in Scotland, not surprising really, as SSSE stands for Sino-Scottish Sichuan Expedition in 1992. Affinity to deltoidea has been appended since.
This is a vigorous twining climber with green straight sided bells with fine dark red lines and broad pale red vertical bands externally and faint red spotting internally. The leaves are large with serrated edges occasionally with a red edge.
The seed is brown and medium sized.
China (Sichuan certainly, possibly wider spread)