Seeds of South Australia
Gunniopsis zygophylloides (Aizoaceae)
Twin-leaf Pigface
List of species for Gunniopsis
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Seed collecting:
October to December
Herbarium regions:
Lake Eyre, Gairdner-Torrens
NRM regions:
Alinytjara Wilurara, South Australian Arid Lands
IBRA regions
Kingoonya (GAW05)Gawler
 Near Threatened   [southern limit]
Torrens (GAW06) 
 Near Threatened
Roxby (GAW07) 
 Near Threatened
Tallaringa (GVD05)Great Victoria Desert
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Warriner (SSD04)Simpson Strzelecki Dunefields
 Near Threatened
Breakaways (STP01)Stony Plains
 Least Concern
Oodnadatta (STP02) 
 Least Concern
Murnpeowie (STP03) 
 Least Concern
Macumba (STP05) 
 Least Concern
Witjira (STP06) 
 Least Concern
Baltana (STP07) 
 Least Concern
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 Gunniopsis]
Name derivation:
Gunniopsis from the genus Gunnia named after Ronald Campbell Gunn (1808-1881), a Tasmania botanist and from the Greek 'opsis' meaning resembling; alluding to the resembles of the genus to the genus GunniaZygophylloides means resembling the genus Zygophyllum.
Distribution:
Found in north central part of South Australia, growing in rocky situations in ranges and on shaly or quartzite. Also found in Northern Territory.
Status:
Native. Common in South Australia. Uncommon in Northern Territory.
Plant description:
Greenish slightly papillose erect or decumbent perennial shrub to 60 cm high. Leaves green or yellow-green, ovate to obovate, to 58 mm long and 24 mm wide. Flowers solitary, outside surface green, inside surface yellow. Flowering between July and October.
Fruit type:
Brown capsule to 8 mm long, four lobed and deeply depressed at apex.
Seed type:
Small brown reniform seed to 1.4 mm long, covered with round tubercules.
Embryo type:
Peripheral.
Seed collecting:
Pick mature capsules when they turn a straw colour and contain hard dark seeds.
Seed cleaning:
Place the capsules in a tray and leave to dry for at least a week. Then rub the dried capsules to dislodge the seeds. Use a sieve to separate the unwanted material. 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.
Seed viability:
From one collection, the seed viability was high, at 100%.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
7500 (2.8 g)
7500 (2.8 g)
100+5-Oct-2010TST1016
Lake Eyre
1-Jan-2012100%-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.