Seeds of South Australia
Blennodia pterosperma (Cruciferae)
Wild Stock
List of species for Blennodia
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Seed collecting:
August to November
Herbarium regions:
Lake Eyre, Gairdner-Torrens, Flinders Ranges, Eastern
NRM region:
South Australian Arid Lands
IBRA regions
SUMMARY
Gawler Lakes (GAW03)Gawler
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)   [comes up after rain]
Arcoona Plateau (GAW04) 
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)   [comes up after rain]
Torrens (GAW06) 
 Rare   (IUCN: RA d(ii))   (Probable Decline)
Roxby (GAW07) 
 Rare   (IUCN: RA d(ii))   (Probable Decline)
Simpson Desert (SSD02)Simpson Strzelecki Dunefields
 Least Concern
Dieri (SSD03) 
 Least Concern
Strzelecki Desert (SSD05) 
 Least Concern
Murnpeowie (STP03)Stony Plains
 Rare   (IUCN: RA d(i,ii))   [limited habitat]
Macumba (STP05) 
 Near Threatened
Witjira (STP06) 
 Near Threatened
Sturt Stony Desert (CHC02)Channel Country
 Least Concern
Coongie (CHC06) 
 Least Concern
Lake Pure (CHC07) 
 Least Concern
IBRA regions
DISPLAY ALL
4 of 8 subregionsGawlerRare
3 of 4 subregionsSimpson Strzelecki DunefieldsLeast Concern
3 of 7 subregionsStony PlainsNear Threatened
, Rare
3 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 Blennodia]
Name derivation:
Blennodia from the Greek 'blennos' meaning slime; referring to the mucous seeds. Pterosperma frrom the Greek 'pteron' meaning winged and 'spermus' meaning a seed; referring to the species having winged seeds.
Distribution:
Found in the north-eastern part of South Australia, growing on sand in dunes and swales. Also found in the Northern Territory, Queensland and New South Wales.
Status:
Native. Common in South Australia. Uncommon in New South Wales. Common in the other states.
Plant description:
Erect annual herb to 50 cm tall, with hairy stems and branches. Leaves pinnate with 2-5 pairs of lobes, to 7 cm long. Flowers white, pink or lavender on a long spike. Flowering between June and October.
Fruit type:
Long brown cylindrical pods hanging down along the stem. This differ from Blennodia canescens where the pods are held erect.
Seed type:
Flat orange reinform seed to 2 mm long and 1.2 mm wide, with papery wing on the edge and slightly wrinkled surface.
Embryo type:
Bent.
Seed collecting:
Collect pods that are maturing, drying off and turning brown with yellow seeds inside.
Seed cleaning:
Place the pods in a tray and cover with paper to prevent seeds from popping out and leave to dry for a week. Then rub the pods 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%.
Seed germination:
This species has physiological dormancy that need to be overcome for the seed to germinate.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
19500 (7.61 g)
19500 (7.61 g)
50+25-Sep-2008TST413
Lake Eyre
20-Jul-2009100%-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.