- Scientific name: Amorphophallus titanum
- Family: Araceae (aroid, duckweed)
Perennial herb with largest collection of flowers (inflorescence) in the world. Solitary inflorescence with leaf-like structure (spathe) surrounding a fleshy spike (spadix). Spathe approx. 3m in circumference, pale green and spotted white on outside, rich dark crimson colour on inside. Spadix up to 2m tall, dull yellow colour, hollow and expanded at base. Solitary leaf produced after flower, can exceed 4m wide. Leaf stalk (petiole) pale green spotted with white. Pollinated by beetles and flies.
Britain's biggest flower
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Eau de Titan
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- It's the largest flowering structure (inflorescence) on Earth, growing up to three metres tall.
- The flower is only open for 48 hours and attracts insect pollinators with its stench of rotting flesh.
- When it blooms the flower produces its own heat to help spread the smell and attract pollinators
- This plant rarely blooms in cultivation (only producing a flower after 7-9 years) but Tim Grigg, a horticulturist at Eden’s nursery, has had a remarkable success rate having produced many for display in the Rainforest Biome. He has to hand-pollinate the individual flowers. They can take up to seven years to bloom.
- The swollen underground storage stem (tuber) can weigh more than 75kg.
- Research is being carried out to see if a protein from the titan arum could be used to create a treatment for African sleeping sickness, which kills thousands of people each year in sub-Saharan Africa.
- This arum is related to the cuckoo pint (lords and ladies) found in British hedgerows.
Where it grows
Rainforest in western Sumatra, Indonesia, on steep hillsides that are 120–365m above sea level.
The titan arum is listed as ‘vulnerable’ by the International Union for Conservation of Nature, as its rainforest habitat in Western Sumatra, Indonesia, is under threat from deforestation.
When the inflorescence is fully open, it produces an overpowering stench of rotting flesh to attract insect pollinators such as carrion-eating beetles and flesh flies.
- Herb: plant with fleshy parts rather than a persistent woody stem above ground.
- Perennial: lives for at least two years.