Marsdenia named after William Marsden (1754-1836), an Irish-born British traveller, plant collector and Secretary of the Admiralty. Australis from Latin meaning southern; referring to species distribution in Australia.
Distribution and status
Found scattered in the northern part of South Australia. Also found in all mainland states. Native. Common in South Australia. Rare in Victoria. Common in the other states.
Herbarium regions: North Western, Lake Eyre, Nullarbor, Gairdner-Torrens, Flinders Ranges, Eastern, Eyre Peninsula, Murray
NRM regions: Alinytjara Wilurara, Eyre Peninsula, South Australian Arid Lands, South Australian Murray-Darling Basin
AVH map: SA distribution map (external link)
Perennial climbing herb with twining stems containing a milky sap. Leaves linear to 100 mm long and 30 mm wide. Flowers greenish-yellow to 75 mm long and occur in branched clusters from the leaf axils in spring to summer. The flowers are followed by a yellow-brown seeds attached to tightly packed feathery hairs. Fruits are large green pear-shaped fruit, turning pale brown and splitting when matured and containing numerous seeds. Seeds are yellow ovoid seed to 7 mm long and 4 mm wide, with long dense pappus.
Seed collection and propagation
Collect seeds between December and April. Collect fruits that are maturing, fat, hard, turning pale brown and contain fluffy seeds. Place the fruit in a tray and leave to dry for at least two weeks until it split. Then shake the fruits to release the seeds. No further cleaning is required. Store the seeds with a desiccant such as dried silica beads or dry rice, in an air tight container in a cool and dry place.
|Location||No. of seeds|
|BGA||4,200 (100.74 g)||12||25-Sep-2014||DJD3052|
|Date||Result||T0||T50||Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod|
Incubated under spring/autumn conditions
Incubated under winter conditions