Question 1

What is the Sinhala name for Dioscorea oppositifolia var. oppositifolia?

Accepted Answer

It is known as Hiritala (හිරිතල) in Sinhala. This is the common local name used for this species in Sri Lanka.

Question 2

Is Dioscorea oppositifolia var. oppositifolia native to Sri Lanka?

Accepted Answer

Yes, this variety is recorded as native to Sri Lanka. It occurs naturally within the island's flora.

Question 3

What part of Dioscorea oppositifolia var. oppositifolia is edible?

Accepted Answer

The tuber is the recorded edible part of this plant. No other parts are listed as edible.

Question 4

What family does Dioscorea oppositifolia var. oppositifolia belong to?

Accepted Answer

It belongs to the family Dioscoreaceae, the yam family, which includes many climbing, tuber-producing species found across the tropics.

Question 5

What is the conservation status of Dioscorea oppositifolia var. oppositifolia?

Accepted Answer

It is classified as Near Threatened according to the National Conservation Status list of Sri Lanka published in 2012.

Question 6

Is Dioscorea oppositifolia var. oppositifolia a climbing plant?

Accepted Answer

Yes, species in the genus Dioscorea, including this variety, are typically twining vines that grow from an underground tuber.

Dioscorea oppositifolia var. oppositifolia

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