Seeds of South Australia
Stenopetalum nutans (Cruciferae)
Stinking Thread-petal
List of species for Stenopetalum
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Seed collecting:
September to November
Herbarium regions:
North Western, Lake Eyre, Eyre Peninsula
NRM regions:
Alinytjara Wilurara, Eyre Peninsula, South Australian Arid Lands
IBRA regions
Maralinga (GVD03)Great Victoria Desert
 Rare   (IUCN: RA d(i,ii))   [ephemeral]
Kintore (GVD04) 
 Least Concern
Tallaringa (GVD05) 
 Least Concern
Yellabinna (GVD06) 
 Rare   (IUCN: RA d(i,ii))
Strzelecki Desert (SSD05)Simpson Strzelecki Dunefields
 Least Concern
Breakaways (STP01)Stony Plains
 Least Concern
Murnpeowie (STP03) 
 Data Deficient   [unlikely, wrong location]
Macumba (STP05) 
 Least Concern
Witjira (STP06) 
 Least Concern
Sturt Stony Desert (CHC02)Channel Country
 Least Concern
Coongie (CHC06) 
 Least Concern
Lake Pure (CHC07) 
 Least Concern
Mann-Musgrave Block (CER01)Central Ranges
 Least Concern
Everard Block (CER03) 
 Least Concern
Tieyon (FIN03)Finke
 Least Concern
IBRA regions
4 of 4 subregionsGreat Victoria DesertLeast Concern
, Rare
Strzelecki Desert (SSD05)Simpson Strzelecki DunefieldsLeast Concern
4 of 7 subregionsStony PlainsLeast Concern
, Data Deficient
3 of 4 subregionsChannel CountryLeast Concern
2 of 3 subregionsCentral RangesLeast Concern
Tieyon (FIN03)FinkeLeast 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 Stenopetalum]
Name derivation:
Stenopetalum from the Greek 'stenos' meaning narrow and 'petalon' meaning petals; referring to the narrow petals. Nutans from the Latin 'nuto' meaning nodding; alluding to the nutant fruit pods.
Found scattered in the northern part of South Australia, growing in sandy soils. Also found in Western Australia, Northern Territory, Queensland and New South wales.
Native. Common in South Australia. Common in the other states.
Plant description:
Annual or biennial herbs, decumbent to erect, to 50 cm tall, sparsely hairy. Leaves entire or remotely dentate to pinnatifid, to 9 cm long, reducing above. Inflorescence a terminal spike with yellow-green or brown flowers, petals with the apex long, slender and often twisted. Flowering between July and September.
Fruit type:
Brown obovoid pod to 13 mm long, sometimes slightly compressed, hanging downward.
Seed type:
Orange flat reinform seed to 1.5 mm long and 1.2 mm wide.
Embryo type:
Seed collecting:
Collect maturing pods those turning pale brown with orange seeds inside. Be gentle with the pods as they split open easily.
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 dried 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%.
Seeds stored:
LocationNo. of seeds
(weight grams)
of plants
Collection number
Collection location
% ViabilityStorage
11000 (6.94 g)
11000 (7.07 g)
>6026-Oct-2004MOL 4633
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.