Article · Wikipedia archive · Last revised Jun 19, 2026

Dioscorea transversa

Dioscorea transversa, the pencil yam, is a vine of eastern and northern Australia.

Last revised
Jun 19, 2026
Read time
≈ 1 min
Length
276 w
Citations
6
Source
Dioscorea transversa
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
Clade: Tracheophytes
Clade: Spermatophytes
Clade: Angiosperms
Clade: Monocots
Order: Dioscoreales
Family: Dioscoreaceae
Genus: Dioscorea
Species:
D. transversa
Binomial name
Dioscorea transversa
Synonyms1

Dioscorea punctata R.Br.

Dioscorea transversa, the pencil yam, is a vine of eastern and northern Australia.12

The leaves are heart-shaped, shiny, with 5-7 prominent veins. The seed pods are rounded, green or pink before drying to a straw brown papery texture. The edible tubers are typically slender and long. There are two forms: an eastern rainforest and wet sclerophyll form which doesn't have bulbils, and a northern form which occurs in open forests and has small bulbils and large inground tubers.3

Uses

The tubers were a staple food of Australian Aboriginals and are eaten after cooking, usually in ground ovens.3 The 1889 book 'The Useful Native Plants of Australia records that common names included "long yam", Indigenous Australians from Central Queensland referred to it as "kowar" and that "the small young tubers are eaten by the aborigines without any preparation."4

References

References

  1. Kew World Checklist of Selected Plant Families
  2. Govaerts, R., Wilkin, P. & Saunders, R.M.K. (2007). World Checklist of Dioscoreales. Yams and their allies: 1-65. The Board of Trustees of the Royal Botanic Gardens, Kew.
  3. Low, Tim (1988). Wild Food Plants of Australia. North Ryde, N.S.W.: Angus & Robertson. ISBN 978-0-207-16930-4.
  4. J. H. Maiden (1889). The useful native plants of Australia : Including Tasmania. Turner and Henderson, Sydney.
External links