Top 10Updated 2026年4月20日
Top 10 Largest Flowers
This ranking is based on the maximum diameter of single flowers recorded in botanical studies. It includes the world's largest known flower species, reflecting extreme biological forms in nature with scientific reference value.
Current #1
Rafflesia arnoldii
Interesting Facts & Summary
The Rafflesia arnoldii claims the top spot, boasting a diameter of over 1 meter and weighing as much as 10 kilograms, making it the absolute titan of the botanical world.
- Bizarre Survival Strategy: Lacking roots, stems, or leaves, it acts as a total parasite within host vines—a true 'vampire' of the plant kingdom.
- The 'Corpse Flower': It emits a potent scent of rotting meat to attract carrion-feeding insects for pollination, a strategy starkly different from the fragrant blooms we typically expect.
- Size Contrast: In comparison, the world's smallest flower, the Wolffia, is a mere 0.5 millimeters across. This means the Rafflesia spans 2,000 times the width of its smallest relative, illustrating the staggering range of biological scaling.
| Rank | Name | Diameter (meters) | Additional Info |
|---|---|---|---|
Rafflesia arnoldii | 1.4 | Parasitic plant found in Sumatra and Borneo, emits foul odor to attract pollinators | |
Rafflesia keithii | 1.2 | Endemic to Malaysia, petals up to 5 cm thick | |
Rafflesia cantleyi | 1 | Philippine endemic, dark red disk with white spots | |
| 4 | Rafflesia tuan-mudae | 0.9 | Discovered in Borneo rainforest, new species recorded in 2019 |
| 5 | Rafflesia zollingeriana | 0.8 | Java endemic, blooms for only 5-7 days |
| 6 | Sapria himalayana | 0.4 | Parasitic on oak roots, found in Himalayan region |
| 7 | Selenicereus grandiflorus | 0.3 | Night-blooming, highly fragrant, native to Central America |
| 8 | Paeonia suffruticosa | 0.3 | Chinese endemic, cultivated varieties reach 30 cm diameter |
| 9 | Nelumbo nucifera | 0.25 | Aquatic plant, dignified flower shape, symbol of purity |
| 10 | Hibiscus rosa-sinensis | 0.2 | Common tropical ornamental, single-petal varieties have larger diameter |
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