1
Abrus precatorius
- Value (with unit)
- 0.0001
- Additional Info
- LD50 (mg/kg, intravenous)
Top 12Updated March 3, 2026
Top 12 Most Toxic Plants Ranking
Based on scientific data such as LD50 values, this ranking evaluates toxicity intensity, lethal dose, and danger level to list the world's 12 most hazardous plants, aiming to raise public awareness.
Top 3
- 1Abrus precatorius
- 2Ricinus communis
- 3Antiaris toxicaria
Abrus precatorius
1
Ricinus communis
2
Antiaris toxicaria
3
About this ranking
- Ranking type
- Not classified
- Data as of
- Not specified
- Last source review
- Not yet verified
Ranking methodology has not been provided.
References: 0. Page edits do not imply that the underlying data is newer. AI assisted in producing this content; verification status is shown above.
Interesting Facts & Summary
The Deadly 'Lover's Bead': King of Botanical Killers
The Abrus precatorius (Rosary Pea) takes the top spot for a chilling reason: it contains Abrin, one of the most potent natural toxins known to science.
- Deadly Comparison: Abrin is astronomically toxic, with a lethal dose as low as 0.1–1 microgram per kilogram of body weight (via injection). A single seed contains enough toxin to kill an adult within hours. Remarkably, it is estimated to be approximately 75 times more potent than the infamous Ricin.
- The Hidden Danger: Despite its beautiful red-and-black aesthetic, which makes it popular for jewelry and prayer beads, the plant is a silent trap. The danger lies in the seeds' hard shell; if broken during crafting, the lethal toxin is released, posing an immediate, often underestimated, life-threatening risk to artisans and collectors.
2
Ricinus communis
- Value (with unit)
- 0.01
- Additional Info
- LD50 (mg/kg, intravenous)
3
Antiaris toxicaria
- Value (with unit)
- 0.05
- Additional Info
- LD50 (mg/kg, skin contact)
4
Aconitum napellus
- Value (with unit)
- 0.1
- Additional Info
- LD50 (mg/kg, oral)
5
Cerbera odollam
- Value (with unit)
- 0.1
- Additional Info
- LD50 (mg/kg, oral)
6
Nerium oleander
- Value (with unit)
- 0.3
- Additional Info
- LD50 (mg/kg, oral)
7
Datura stramonium
- Value (with unit)
- 0.5
- Additional Info
- LD50 (mg/kg, oral)
8
Conium maculatum
- Value (with unit)
- 0.5
- Additional Info
- LD50 (mg/kg, oral)
9
Strychnos nux-vomica
- Value (with unit)
- 0.5
- Additional Info
- LD50 (mg/kg, oral)
10
Atropa belladonna
- Value (with unit)
- 0.6
- Additional Info
- LD50 (mg/kg, oral)
11
Gelsemium elegans
- Value (with unit)
- 0.7
- Additional Info
- LD50 (mg/kg, oral)
12
Hippomane mancinella
- Value (with unit)
- 1
- Additional Info
- LD50 (mg/kg, oral)
| Rank | Name | Value (with unit) | Additional Info |
|---|---|---|---|
| 1 | Abrus precatorius | 0.0001 | LD50 (mg/kg, intravenous) |
| 2 | Ricinus communis | 0.01 | LD50 (mg/kg, intravenous) |
| 3 | Antiaris toxicaria | 0.05 | LD50 (mg/kg, skin contact) |
| 4 | Aconitum napellus | 0.1 | LD50 (mg/kg, oral) |
| 5 | Cerbera odollam | 0.1 | LD50 (mg/kg, oral) |
| 6 | Nerium oleander | 0.3 | LD50 (mg/kg, oral) |
| 7 | Datura stramonium | 0.5 | LD50 (mg/kg, oral) |
| 8 | Conium maculatum | 0.5 | LD50 (mg/kg, oral) |
| 9 | Strychnos nux-vomica | 0.5 | LD50 (mg/kg, oral) |
| 10 | Atropa belladonna | 0.6 | LD50 (mg/kg, oral) |
| 11 | Gelsemium elegans | 0.7 | LD50 (mg/kg, oral) |
| 12 | Hippomane mancinella | 1 | LD50 (mg/kg, oral) |
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