Hi,
Cissampelos pareira and Stephania japonica belong to the family
Menispermaceae
Both species are dioecious.
In Stephania leaves are glabrous as are the stem as well
In Cissampelos leaves and stem tomentose
In Stephania the petiole (leaf stalk) joins the leaf away from the
edge / conspicuously peltate (resembles Cyclea peltata) generally
triangular-rotund.
In Cissampelos the petiole joins the leaf close to the edge
In Stephania flowers arranged in stalked umbellate cymes
In Cissampelos Male inflorescences axillary, solitary or few
fascicled, corymbose cymes and pubescent whereas, female
inflorescences thyrsoid, narrow
Some useful Links:
Stephania japonica
http://www.hear.org/pier/species/stephania_japonica.htm
http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200008451
Cissampelos pareira
http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=242313190
Regards
Giby
> What is the difference this *Cissampelos pareira* and *Stephania
> japonica*in the same family?