from what i can tell, Gegen is the Chinese name for Puereria...

Judging by these references, it would appear to fit the context!

I don't think there is a French name for Puereria, so best to use the Latin.


"pueraria
gegen
resolves surface, expels heat, promotes furuncle eruption, increases salivation, controls diarrhea, nourishes muscles and vessels"


"Puereria Tuberosa



PLANT PART USED :

Tubers.



DESCRIPTION :

A large perennial climber with very large tuberous rots, distributed nearly throughout India, except in very humid or very arid regions, and ascending up to 1,200 m. Stems woody, up to 12 cm. in diam.,leaves trifoliolate ; flowers blue or purplish blue, in racemes 15 - 30 cm. long ; pods flat, 5 - 7 cm. long ; densely closed with long , silky , bristly brown hairs ; seeds 3 - 6. The tubers are large, 30 - 60 cm. long and 25 - 30 cm. broad, weighing up to 35 kg.



PHYTOACTIVE :

N.A.



DIRECTION FOR USE :

The roots are said to be used in medicine as a demulcent and refrigent in fevers, as cataplasm for swelling of joints, and as lactagogue.



CONTRAINDICATION :

N.A.



FORMULATION AND DOSAGES :

N.A."