Amorphophallus titanum(or titan arum). One of the most spectacular plants to be found in the wet tropics zone of the Princess of Wales Conservatory is the titan arum. With its huge flowering structure (inflorescence) rising up to 3m above the ground and its single immense leaf, it certainly is a giant among plants, as its name suggests. Coupled with its characteristic foul stench, and the rarity of flowerings, this plant has always hit the headlines. (Photo: discovery 163.com)

Dracuunculus vulgaris (Photo: discovery 163.com)