UK Flowers: Herbs, Shrubs, Vines & Trees
UK Flowers

UK Castor Oil PlantAlso known as: Castor Bean

Tree Icon Naturalized Flower     First Aid Symbol  Toxic
Image of Castor Oil Plant
Ricinus communis
Family: Euphorbiaceae

Flower Properties

Property Value
English Name Castor Oil Plant
Also Known As Castor Bean
Scientific Name Ricinus communis
MainColor Red
PlantType Tree Icon Tree
Distribution Naturalized Flower Naturalized
Season Found July (Jul - Sep)
ImageUrl Ricinus-003
Photographer Gita
Location Found Savill Gardens
Country Found UK
Last Updated 06 September 2026
Photo Quality C

Flower Details

Description

Ricinus communis is a fast-growing perennial shrub or small tree that can reach up to 12 metres in height. It has large, glossy, palmate leaves with serrated edges and produces spiky seed capsules. The seeds are mottled and contain the highly toxic compound ricin.

Distribution

Native to the southeastern Mediterranean Basin, Eastern Africa, and India, it is now widespread in tropical and subtropical regions around the world. It often grows in wastelands and along roadsides.

Medicinal/Other Uses First Aid Symbol

✅ The oil extracted from the seeds is used as a laxative and in the production of industrial lubricants.

Edibility

Inedible - seeds are highly toxic and should never be consumed.

Human Toxicity Toxic
Toxic Highly_Toxic

Highly Toxic - ingestion of seeds can be fatal, causing severe abdominal pain, vomiting, and diarrhoea.

Pet Toxicity Pet Toxicity

Highly Toxic to dogs and cats - ingestion can lead to severe symptoms including vomiting, diarrhoea, and potentially death.

Active Compounds

Ricin, ricinoleic acid, ricinine.

Quality Issue

Action: Enhanced. Image is soft and lacks clear detail in the flower/fruit structure

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