World's largest flowers

 World's largest flowers


🌺 Rafflesia arnoldii – The World’s Largest Flower


🔬 Scientific Overview

  • Scientific Name: Rafflesia arnoldii

  • Family: Rafflesiaceae

  • Genus: Rafflesia

  • Discovered: In 1818 by Dr. Joseph Arnold, on an expedition led by Sir Stamford Raffles

  • Common Name: Corpse flower (note: not to be confused with Amorphophallus titanum)


🌍 Natural Habitat

  • Native to:

    • Rainforests of Sumatra and Borneo in Indonesia

  • Environment:

    • Lowland tropical rainforests with high humidity and rich biodiversity


🌼 Unique Characteristics

TraitDescription
🌸 Flower SizeCan grow up to 1 meter (3 feet) in diameter and weigh up to 11 kg (24 lbs)
🌿 No Leaves, Stems, or RootsIt's a holoparasitic plant, meaning it completely depends on its host for nutrients
🌱 Host PlantIt lives inside the Tetrastigma vine (a grapevine relative)
☠️ SmellEmits a strong odor of rotting flesh to attract flies for pollination
Lifespan of FlowerBlooms for only 5 to 7 days, then withers quickly
🧬 No PhotosynthesisLacks chlorophyll, so it doesn't produce its own food

🧬 Life Cycle

  1. Invisible Phase: Most of its life is hidden inside the host vine as thread-like structures (like fungus).

  2. Budding: A bud slowly emerges over several months.

  3. Blooming: The flower opens suddenly and lasts only a few days.

  4. Pollination: Attracted by the smell, carrion flies enter the flower and transfer pollen.

  5. Fruiting & Seeds: After pollination, it produces fruit containing many seeds, which must come into contact with a suitable host vine to germinate.


📉 Conservation Status

  • Threats:

    • Habitat destruction due to deforestation and logging

    • Ecotourism pressure and illegal harvesting

  • Conservation Efforts:

    • Protected in some national parks

    • Local conservation programs and awareness campaigns

  • IUCN Status: Not formally evaluated for all species, but generally considered vulnerable or endangered


🌐 Cultural Significance

  • National icon of Indonesia

  • Featured in local folklore and conservation campaigns

  • Often a symbol of biodiversity and the need to protect rainforests


Would you like a diagram of its life cycle, a summary for a school project, or a comparison with other large flowers like Titan arum?

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