I received those two plants
with the names: S. sessilifolia (the one in left side)
and S. tuberosa (right column). At that time, there
wasn't much info on the web.
I was contacted by
Professor Paul But from the university of Hong Kong. He made a
DNA-analyse, and it turned up as same species: S. collinsae.
The flowers are not alike
each other, nor do they look like the other flowers I can find
at the web.
I am pretty sure, the same
species has been sold all over Europe, and many plants has been
This member of the Stemonaceae
family was described by William Grant Craib in 1920. It is found in
the central Asia, growing in sand or other well drained soil with
some water and some sun. The roots grow to 15 millimetres in
diameter, the vines up to 75 centimetres long. The flowers are dark
purple and green.
A piece of work on Stemona Alkoloids.