Oleander flowers

About Oleander flowers:

• Nerium oleander, commonly known as oleander or rosebay, is a plant cultivated worldwide in tropical, subtropical, and temperate regions.
• It is known for its drought tolerance, the shrub is often used for ornamental and landscaping purposes.
• In Kerala, the plant is known by the names of arali and kanaveeram, and is grown along highways and beaches as a natural, green fencing.
• There are different varieties of oleander, each with a flower of a different colour.
• The plant has been frequently described in Brihattrayi, Nighantus and other classical Ayurvedic texts.
• Charka [Charak Samhita] has prescribed the leaves of white flowered variety externally in chronic and obstinate skin diseases of serious nature including leprosy.
• According to Ayurvedic Pharmacopoeia of India (API) an oil prepared from the root bark can be used to treat skin diseases.

Oleander’s toxicity

• Ingestion or inhalation of smoke from burning oleander can be intoxicating.
• This is due to the properties of cardiac glycosides (a type of chemical) including oleandrin, folinerin, and digitoxigenin, which are present in all parts of the plant.
• Effects of oleander toxicity include nausea, diarrhea, vomiting, rashes, confusion, dizziness, irregular heartbeat, slow heartbeat, and, in extreme cases, death.

Q1: What is the characteristic of temperate climates?

 These are characterized by relatively moderate mean annual temperatures, with average monthly temperatures above 10°C in their warmest months and above −3°C in their colder months.

Source: Why Kerala has banned oleander flowers in temple offerings