Hi let me know what you have
I have Impatiens glandulifera seed plus the native Impatiens capensis yellow form. I have never tried the native Impatiens from dried seed so I am not sure if the extra seed I have that was allowed to dry out will be viable but I have grown Impatiens glandulifera from dried seed. I noticed that you are also looking for Aristolochis gigantea. I don't have that species but I have plenty of seed from my Aristolochia littoralis if your interested.