Seeds of South Australia
Portulaca intraterranea (Portulacaceae)
Inland Purslane
List of species for Portulaca
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Seed collecting:
November to March
Herbarium region:
Lake Eyre
NRM region:
South Australian Arid Lands
IBRA regions
SUMMARY
Torrens (GAW06)Gawler
 Rare   (IUCN: RA d(ii))   [sand dune spp]
Barrier Range (BHC01)Broken Hill Complex
 Rare   (IUCN: RA d(i))
Simpson Desert (SSD02)Simpson Strzelecki Dunefields
 Least Concern   [sand dune spp]
Dieri (SSD03) 
 Least Concern   [sand dune spp]
Warriner (SSD04) 
 Least Concern   [sand dune spp]
Strzelecki Desert (SSD05) 
 Least Concern   [sand dune spp]
Oodnadatta (STP02)Stony Plains
 Least Concern   [sand dune spp]
Murnpeowie (STP03) 
 Least Concern   [sand dune spp]
Peake-Dennison Inlier (STP04) 
 Least Concern   [sand dune spp]
Macumba (STP05) 
 Least Concern   [sand dune spp]
Witjira (STP06) 
 Least Concern   [sand dune spp]
Baltana (STP07) 
 Least Concern   [sand dune spp]
Sturt Stony Desert (CHC02)Channel Country
 Least Concern   [sand dune spp]
Diamantina-Eyre (CHC04) 
 Least Concern   [sand dune spp]
Coongie (CHC06) 
 Least Concern   [sand dune spp]
Lake Pure (CHC07) 
 Least Concern   [sand dune spp]
IBRA regions
DISPLAY ALL
Torrens (GAW06)GawlerRare
  (IUCN: RA d(ii))   [sand dune spp]
Barrier Range (BHC01)Broken Hill ComplexRare
  (IUCN: RA d(i))
4 of 4 subregionsSimpson Strzelecki DunefieldsLeast Concern
6 of 7 subregionsStony PlainsLeast Concern
4 of 4 subregionsChannel CountryLeast 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 Portulaca]
Name derivation:
Portulaca from the Latin 'portula' meaning a small gate or door; probably alluding to the calyptra (covering tissue) of the capsule.
Distribution:
Found in the north-eastern part of South Australia, growing on sand dunes. Also found in Western Australia, Northern Territory, Queensland and New South Wales.
Status:
Native. Common in South Australia. Common in the other states.
Plant description:
Prostrate to decumbent succulent annual or sometimes perennial herb with stems to 20 cm long. Leaves, succulent, obovate to oblanceolate to 20 mm long. Flowers in clusters of 3 to 4 heads, with yellow petals to 17 mm long, twice as long as sepals. Flowering between August and December.
Fruit type:
Pale brown capsules to 5 mm long.
Seed type:
Dark brown to black reniform seed to 0.8 mm long and 0.6 mm wide, with surface covered in star-shaped reticulate and tubercules.
Embryo type:
Peripheral.
Seed collecting:
Collect mature capsules, those that are turning yellow or pale brown colour and contain black seeds
Seed cleaning:
Place the capsules in a tray and leave to dry for one to two weeks. Then rub the capsules gently by hand 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
43500 (3.75 g)
43500 (3.75 g)
5011-Mar-2007RJB70962
Gairdner-Torrens
1-Aug-2007100%-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.