Question 1

What is Alstonia macrophylla used for in ayurveda?

Accepted Answer

In ayurvedic medicine, Alstonia macrophylla is primarily used for its bark, which acts as a bitter tonic and febrifuge — traditionally applied to reduce fevers and treat digestive complaints. The latex has also been used externally for skin conditions. Use should always be supervised by a qualified ayurvedic practitioner, as the plant contains potent alkaloids.

Question 2

Is Alstonia macrophylla native to Sri Lanka?

Accepted Answer

Alstonia macrophylla grows naturally across tropical South and Southeast Asia, including Sri Lanka. In Sri Lanka it is found mainly in wet zone lowland forests and secondary growth habitats. It is one of many Alstonia species distributed across the tropical belt.

Question 3

What does Alstonia macrophylla look like?

Accepted Answer

It is a large evergreen tree with distinctive whorled leaves that are notably big — the name macrophylla means 'large leaf'. The tree produces small white tubular flowers and long paired seed pods. The bark exudes a milky white latex when cut.

Question 4

Is Alstonia macrophylla the same as devil tree?

Accepted Answer

The common name 'devil tree' is applied to several related Alstonia species, most often Alstonia scholaris. Alstonia macrophylla is a distinct species distinguished by its larger leaves, though both belong to the same genus and share some botanical and medicinal characteristics.

Question 5

Is Alstonia macrophylla safe to consume?

Accepted Answer

The plant contains alkaloids that can be toxic if used incorrectly or in excessive doses. It should only be consumed as part of a properly prepared formulation under the guidance of a trained ayurvedic physician. Self-medication with bark or latex preparations is not recommended.

Question 6

Where in Sri Lanka can I see Alstonia macrophylla?

Accepted Answer

The tree is found in lowland wet zone forests, along roadsides, and in home gardens across Sri Lanka's intermediate and wet zones. It may also be encountered in and around protected areas such as Sinharaja Forest Reserve in the Southern Province.

Question 7

What alkaloids are found in Alstonia macrophylla?

Accepted Answer

Research has identified several indole alkaloids in the bark and leaves of Alstonia macrophylla. These compounds have been studied for potential antimalarial, anti-inflammatory, and antimicrobial properties in laboratory settings, lending scientific support to some of the plant's traditional medicinal applications.

Alstonia macrophylla

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