Question 1

What is Rhaphidophora decursiva used for in ayurveda?

Accepted Answer

Rhaphidophora decursiva is recorded in Sri Lanka's catalogue of ayurvedic medicinal plants. Parts of the plant, typically the rhizome or leaf, have traditional applications in South Asian herbal medicine. Any medicinal use should be guided by a qualified ayurvedic practitioner, as the raw plant contains irritant calcium oxalate crystals.

Question 2

Where is Rhaphidophora decursiva found in Sri Lanka?

Accepted Answer

The plant grows in moist lowland and mid-elevation forests across Sri Lanka, where it climbs the trunks of large trees in the understorey. It is also found along forest margins and disturbed edges in the intermediate and wet zones of the island.

Question 3

Is Rhaphidophora decursiva the same as a Monstera?

Accepted Answer

No. Both belong to the family Araceae, but Rhaphidophora decursiva is a distinct genus. Mature R. decursiva leaves develop deep pinnate lobing but do not form the perforations, or fenestrations, that are characteristic of Monstera species.

Question 4

Is Rhaphidophora decursiva toxic to humans or pets?

Accepted Answer

Like most aroids, R. decursiva contains calcium oxalate raphides, which cause irritation to the mouth, throat, and skin if the raw plant is ingested or handled. It should be kept out of reach of children and pets, and any medicinal preparation requires proper processing by a trained practitioner.

Question 5

How do you identify Rhaphidophora decursiva?

Accepted Answer

Mature plants have large leaves with deep pinnate lobing that runs toward the midrib, distinguishing them from fenestrated Monstera leaves. The petiole carries a partially persistent sheath, and the plant produces robust aerial roots that adhere tightly to bark. Juvenile leaves are smaller and simpler, becoming more complex as the plant climbs higher.

Question 6

What is the scientific classification of Rhaphidophora decursiva?

Accepted Answer

It belongs to the order Alismatales, family Araceae, and genus Rhaphidophora. The full binomial is Rhaphidophora decursiva (Roxb.) Schott, first described by William Roxburgh and later reclassified by Heinrich Wilhelm Schott.

Question 7

Can I see Rhaphidophora decursiva in the wild in Sri Lanka?

Accepted Answer

Yes. The plant grows in humid forest habitats, particularly in the wet zone and parts of the intermediate zone. Guided nature walks through lowland rainforest areas offer the best chance of encountering it in its natural climbing habit. Sri Lanka's botanical gardens also maintain labelled collections of native medicinal plants.