This is a black-stemmed form of A. konjac. The stem on young plants
is actually very dark green, and becomes much darker with age. Otherwise,
it is apparently the same as a regular A. konjac. 
|   | This is a two-year old plant, started from an offset that
was about 1/2 inch across and 1 inch long in 1994. In summer 1995, the
leaf is about 10 inches across. | 
|   | Another specimen, this one is three years old, about 18
inches across. | 
|   | Closeup of the stem of a young plant. | 
|   | Inflorescence of a big specimen, growing on the grounds
of the Men's Garden Club in Raleigh, NC. This photo has been taken in spring
1995. | 
|   | Closeup of the inflorescence. | 
|  | The tuber breaking dormancy looks like an underwater creature with tentacles... |