Seeds of South Australia
Muehlenbeckia diclina ssp. diclina (Polygonaceae)
Weeping Lignum
List of species for Muehlenbeckia
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Seed collecting:
November to January
Herbarium regions:
Eyre Peninsula, Murray
NRM regions:
Eyre Peninsula, South Australian Murray-Darling Basin
IBRA regions
Olary Spur (FLB03)Flinders Lofty Block
 Rare   (IUCN: RA d(i,ii))   [extreme ecological fluctuations]
Eyre Hills (EYB03)Eyre Yorke Block
 Rare   (IUCN: RA d(ii))
Eyre Mallee (EYB05) 
 Rare   (IUCN: RA d(ii))
South Olary Plain (MDD01)Murray Darling Depression
 Vulnerable   (IUCN: VU D1)
Murray Mallee (MDD02) 
 Vulnerable   (IUCN: VU D1)   (Probable Decline)
Lowan Mallee (MDD04) 
 Vulnerable   (IUCN: VU D1)
Myall Plains (GAW01)Gawler
 Rare   (IUCN: RA d(ii))
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. Declina
Distribution:
Found on the eastern Eyre Peninsula and the Muarryland in South Australia, growing on sand dunes and flats, often in mallee. Also found in Western Australia, New South Wales and victoria.
Status:
Native. Uncommon in South Australia. Uncommon in Western Australia. Common in the other states.
Plant description:
Slender erect, open to sprawling shrub to 1 m high with numerous slender wiry branches. Leaves to 4 cm long and 1 mm wide, lanceolate or linear. Flowers arranged in axillary clusters of 1-3, white, cream, green. Flowering between October and November.
Fruit type:
Achene trigonous to subglobose with lateral furrows, shining,
Seed type:
Black, globose seed to 3 mm long and 2 mm wide, smooth, shiny, with lateral furrows.
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 one collection, the seed viability was high, at 90%.
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
BGA850 (4.08 g)7-Dec-2010DJD2015
Murray
1-Jan-201280%-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.