@pascal
thank you for your informations.
hm...it's hard to believe
. when i checked the photos you've linked i wonder how heavily the flowers distinguish. i can imagine, that plants with a wide distribution might show remarkable differences but comparing the
heterotropoides photos with both of mine
Asarum one has to assume different species. but as you said, this types with reflexed lobes belong to
sieboldii + you'r right "heterotropoides starts to flower before the leaves are completely"...this is what mine do. but i'm just a hobby gardener and no botanist. so i'll talk to mine with the name
heterotropoides till the riddle is solved.
(sorry my english isn't so good, hope you understand).
@john
i got the
Aristolochia steupii as a globose tuber from a very kind russian gardener. unfortunately many
Aristolochia are protogynous (female parts (stigma) becomes mature before the male ones (anthers)) + so sterile if you only have one plant. the
steupii seems to be quite rare in cultivation. i only know about another specimen in a german botanical garden. once i got some seed, but i guess it was an old seed...nothing germinated.
