Dioscorea transversa—Native Yam, Yam—DIOSCOREACEAE

Dioscorea transversa

Link to Images on Flickr.

Habitat— In Subtropical and Littoral Rainforest and moist open forest.

Distribution—North from Wollongong, New South Wales to Queensland.

Description—Delicate vine with very thin green (turning black), tightly twining stems of 2 to 4 m long, growing out of a tuber. Tubers: cylindrical, 10 mm diam., deep in soil.

Local occurrences

Barrington/Gloucester Tops, Bennett Head, Black Head, Black Head Beach, Black Head Flora Park, Boorganna Nature Reserve, Booti Hill, Brown's Creek Bicentennial Gardens, Burgess Beach, Burgess Road, Cape Hawke, Cellito, Charlotte Head, Cliff Road, Copeland, Diamond Beach, Diamond Beach LRF, Dixon Property, Elizabeth Beach, Forster Cemetery, Golden Ponds Reserve, Goldens Road Wetlands, Karloo Street Reserve, Knappinghat Nature Reserve, Little Street, Ohmas Bay, One Mile Beach, Penenton Creek and Wetlands, Red Head, Reservoir Hill Reserve, Saltwater Nature Reserve, Sea Acres National Park, Second Head, Seven Mile Beach and Green Point, Stephen Street Reserve, Talawahl Nature Reserve, The Sanctuary, Tiona, Tonie's Gully, Tuncurry Flora Park and Waitui Falls. Wallamba Cove Wallamba River Area Wallingat National Park Zamia Place Reserve

Leaves.— Simple with 3 or more longitudinal veins extending practically to the apex of the lamina, heart—shaped or triangular, thin and soft; leaves die back during the winter. Veins: 5 to 9, from base.

Dioscorea transversa
Dioscorea transversa Dioscorea transversa
Dioscorea transversa

Inflorescence— Male and female on separate plants. Male spikes 3 to 6 cm long, female racemes 10 to 20 cm. Pale, tiny 2 mm, greenish flowers dangling like dainty strings of pearls.

Flowering.—August to October.

Fruit— Greenish brown, 3 lobed capsules, 2 to 3 cm x 1 .5 cm. splits to expel small flat winged seeds. Note: Decorative empty seed capsules become papery dry and persist for months on fine dry black vines, long after the plant dies back for winter.

Ripe.—December to January

Dioscorea transversa