Plants of South Eastern New South Wales

Print Fact Sheet

Dioscorea transversa

Common name

Native yam

Family

Dioscoreaceae

Where found

Forest and moist gullies. Coast and ranges north from Wollongong.

Notes

Herb with twining stems to 4 m long, arising annually from a tuber often deep in the soil. Stems hairless. Leaves alternating up the stems, usually 5–13 cm long, 20–80 mm wide, hairless, upper surface glossy, lower surface somewhat dull, sometimes purplish, tips with a long drawn out point, bases cordate or rarely with pointed spreading lobes. Male and female flowers on different plants, small, with 6 greenish 'petals' in 2 whorls, each 1.5-2.5 mm long. Male flowers rounded, in single or paired spikes 3–6 cm long. Female flowers elongated, in single or paired elongated clusters usually 10–20 cm long. Flowering: spring. Seed cases usually fawn to brownish, sometimes purple, papery, with 3 wings. Seeds flat, with a wing all round the seed.

PlantNET description:  http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Dioscorea~transversa (accessed 12 January, 2021)