Amorphophallus muelleri
The following info has been extracted from Aroideana, Volume 19, a publication of the International Aroid Society. You'll note that this is just a small portion of the extensive descriptive information available in the Aroideana 19:
Tuber | up to 28 cm in diameter |
Leaf petiole | 40-180 cm long, 1-8 cm in diameter (base) |
Leaf lamina | 75-200 cm in diameter |
Spathe | 7.5-27 cm long, 6-27 cm in diameter |
Spadix | 8-30 cm long |
Dormancy | Not listed in volume 19, but mine survived out of the pot during one dormancy |
(extracted with permission from Aroideana volume 19)