Seeds of South Australia
Muehlenbeckia gunnii (Polygonaceae)
Native Sarsparilla
List of species for Muehlenbeckia
Display more images
Click on an image to enlarge it
Seed collecting:
January to December
Herbarium regions:
Eyre Peninsula, Yorke Peninsula, Southern Lofty, Kangaroo Island, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Northern and Yorke, South East
IBRA regions
SUMMARY
Mount Gambier (SVP02)Southern Volcanic Plain
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Bridgewater (NCP01)Naracoorte Coastal Plain
 Least Concern
Lucindale (NCP03) 
 Least Concern
Tintinara (NCP04) 
 Least Concern
Kangaroo Island (KAN01)Kanmantoo
 Least Concern
Fleurieu (KAN02) 
 Least Concern
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Least Concern
Southern Yorke (EYB01)Eyre Yorke Block
 Least Concern
St Vincent (EYB02) 
 Least Concern   (Probable Decline)
Eyre Hills (EYB03) 
 Least Concern
Talia (EYB04) 
 Least Concern
Eyre Mallee (EYB05) 
 Vulnerable   (IUCN: VU D1+2)
Murray Mallee (MDD02)Murray Darling Depression
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)   [edge of range; habitat loss]
Murray Lakes and Coorong (MDD03) 
 Least Concern
IBRA regions
DISPLAY ALL
Mount Gambier (SVP02)Southern Volcanic PlainRare
  (IUCN: RA d(i,ii))   [edge of range]
3 of 4 subregionsNaracoorte Coastal PlainLeast Concern
2 of 2 subregionsKanmantooLeast Concern
Mount Lofty Ranges (FLB01)Flinders Lofty BlockLeast Concern
5 of 5 subregionsEyre Yorke BlockLeast Concern
, Vulnerable
2 of 6 subregionsMurray Darling DepressionLeast Concern
, Rare
RSCA map:
Regional Species Conservation Assessments per IBRA subregion. Please click the thumbnail map.
AVH map:
Australian distribution map (external link)
SA Census:
Census of South Australian plants (external link)     [genus Muehlenbeckia]
Name derivation:
Muehlenbeckia named after Henri Gustav Muehlenbeck (1798-1845), an Alsatian physician and botanist, who investigated the flora of Alsace. Gunnii named after Ronald Campbell Gunn (1808-1881), a British botanist and legislator in Launceston, Tasmania.
Distribution:
Found in the southern part of South Australia, from Eyre Peninsula to the southeast, growing mostly along the coast. Also found in Victoria and Tasmania.
Status:
Native. Common in South Australia. Uncommon in Victoria. Common in Tasmania.
Plant description:
Scrambling, climbing perennial with woody stems to 4 m. Leaves broadly lanceolate-hastate, obtuse or shortly acuminate, to 3 cm long and 1 cm wide. Flowers green. Flowering throughout the year.
Fruit type:
Fleshy ovoid fruit with persisting perianth. Fruits turn from green to yellow/orange when ripe.
Seed type:
Black ellipsoid seed to 4 mm long and 3 mm wide, with lateral furrows and a wrinkled surface.
Embryo type:
Peripheral.
Seed collecting:
Collect ripping fruits that are turning yellow and containing a hard black seed.
Seed cleaning:
Place fruits in a bucket of water and leave to soak overnight. Then rub the fruit to remove the flesh. Rub and change the water a few times until all the fresh are removed. Leave the cleaned seed to dry and then store with a desiccant such as dried silica beads or dry rice, in an air tight container in a cool and dry place.
Seed viability:
From three collections, the seed viability were average to high, ranging from 75% to 100%.
Seed germination:
Seeds are non-dormant, viable seed should germinate readily.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
1000 (13.42 g)
2900 (33.4 g)
630-Aug-2007MJT70
Eyre Peninsula
19-Sep-200875%-18°C
BGA1140 (15.61 g)23-Oct-2013NRD036
Southern Lofty
24-Mar-201595%-18°C
Location: BGA — the seeds are stored at the Adelaide Botanic Gardens, MSB — the seeds are stored at the Millennium Seed Bank, Kew, England.
Number of plants: This is the number of plants from which the seeds were collected.
Collection location: The Herbarium of South Australia's region name.
% Viability: Percentage of filled healthy seeds determined by a cut test or x-ray.
Germination table:
DateResultT0T50Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod
Jul-1494%21 d42 d
1% agar;
6 weeks spring, 6 weeks winter
Jul-1492%14 d31 d 250 mg/L gibberellic acid 48 h;
1% agar;
Incubated under spring/autumn conditions
Jul-1482%31 d42 d
1% agar;
Incubated under spring/autumn conditions
Result: Maximum percentage of germination observed.
T0: Number of days before first germinant observed.
T50: Number of days to achieve 50% germination.
Pre-treatment: The initial treatment that the seeds received prior to placement on germination media.
Germination medium: The substrate that seeds were placed on for the duration of the germination experiment.
Incubator conditions:
Photoperiod: The duration of light exposure that the seeds were subject to during a 24 hour period.
Thermoperiod: The constant or diurnal temperatures that seeds were subject to during a 24 hour period.
Winter conditions: 15°C 20 h (3am→11pm); 5°C 4 h (11pm→3am) / 10 h light (8am→6pm); 14 h dark (6pm→8am)
Spring/Autumn conditions: 22°C 12 h (8am→8pm); 10°C 12 h (8pm→8am) / 12 h light (8am→8pm); 12 h dark (8pm→8am)
Summer conditions: 30°C 14 h (6am→8pm); 15°C 10 h (8pm→6am) / 14 h light (6am→8pm); 10 h dark (8pm→6am)