Codonopsis convolvulacea Kurz

The stem base is very short with a few tuberous stem marks. The root is massive, nearly ovoid or ovoid, 2.5-5cm long and 1-1.5cm in diameter, with grayish yellow surface, short fine ring lines at the upper end, and sparse transverse long lenticels at the lower part. Stems twining or nearly erect, unbranched or with a few branches, up to more than 1 meter long, glabrous or hairy. Leaves alternate or sometimes opposite, evenly distributed on the stem or densely clustered in the middle and lower part of the stem, hairy or glabrous; Completely sessile to have long petioles up to 5.5 cm.