Seeds of South Australia
Stenopetalum lineare (Cruciferae)
Narrow Thread-petal
List of species for Stenopetalum
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Seed collecting:
September to November
Herbarium regions:
North Western, Lake Eyre, Nullarbor, Gairdner-Torrens, Flinders Ranges, Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Alinytjara Wilurara, Eyre Peninsula, Northern and Yorke, South Australian Arid Lands, South Australian Murray-Darling Basin, South East
IBRA regions
SUMMARY
Bridgewater (NCP01)Naracoorte Coastal Plain
 Regionally Extinct   [possibly extinct]
Tintinara (NCP04) 
 Rare   (IUCN: RA d(i,ii))   [outliers]
Fleurieu (KAN02)Kanmantoo
 Rare   (IUCN: RA d(ii))   [edge of range; Hartley, Monarto, Waitpinga]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Rare   (IUCN: RA d(ii))   (Probable Decline)   [edge of range; habitat declining]
Northern Flinders (FLB05) 
 Least Concern   [a complex of species, could be split]
Central Flinders (FLB06) 
 Least Concern   [a complex of species, could be split]
Eyre Hills (EYB03)Eyre Yorke Block
 Least Concern
Talia (EYB04) 
 Least Concern
Eyre Mallee (EYB05) 
 Least Concern
South Olary Plain (MDD01)Murray Darling Depression
 Least Concern
Murray Mallee (MDD02) 
 Least Concern
Lowan Mallee (MDD04) 
 Near Threatened
Murray Scroll Belt (RIV06)Riverina
 Near Threatened   (Probable Decline)
Myall Plains (GAW01)Gawler
 Least Concern
Gawler Volcanics (GAW02) 
 Least Concern
Gawler Lakes (GAW03) 
 Least Concern
Arcoona Plateau (GAW04) 
 Least Concern
Kingoonya (GAW05) 
 Least Concern
Torrens (GAW06) 
 Least Concern   [a complex of species, could be split]
Roxby (GAW07) 
 Least Concern   [a complex of species, could be split]
Commonwealth Hill (GAW08) 
 Least Concern   [a complex of species, could be split]
Maralinga (GVD03)Great Victoria Desert
 Least Concern
Kintore (GVD04) 
 Least Concern   [a complex of species, could be split]
Tallaringa (GVD05) 
 Least Concern   [a complex of species, could be split]
Yellabinna (GVD06) 
 Least Concern
Carlisle (NUL01)Nullarbor
 Least Concern
Nullarbor Plain (NUL02) 
 Least Concern
Yalata (NUL03) 
 Least Concern
Warriner (SSD04)Simpson Strzelecki Dunefields
 Least Concern
Strzelecki Desert (SSD05) 
 Least Concern
Breakaways (STP01)Stony Plains
 Least Concern   [a complex of species, could be split]
Oodnadatta (STP02) 
 Least Concern   [a complex of species, could be split]
Murnpeowie (STP03) 
 Least Concern   [a complex of species, could be split]
Peake-Dennison Inlier (STP04) 
 Least Concern   [a complex of species, could be split]
Macumba (STP05) 
 Least Concern
Witjira (STP06) 
 Least Concern   [a complex of species, could be split]
Baltana (STP07) 
 Least Concern   [a complex of species, could be split]
Sturt Stony Desert (CHC02)Channel Country
 Least Concern
Diamantina-Eyre (CHC04) 
 Near Threatened   [a complex of species, could be split]
Coongie (CHC06) 
 Near Threatened
Lake Pure (CHC07) 
 Least Concern   [a complex of species, could be split]
Mann-Musgrave Block (CER01)Central Ranges
 Least Concern   [a complex of species, could be split]
Watarru (CER02) 
 Least Concern
Everard Block (CER03) 
 Least Concern
Tieyon (FIN03)Finke
 Least Concern   [a complex of species, could be split]
Pedirka (FIN04) 
 Least Concern
IBRA regions
DISPLAY ALL
2 of 4 subregionsNaracoorte Coastal PlainRare
, Regionally Extinct
Fleurieu (KAN02)KanmantooRare
  (IUCN: RA d(ii))   [edge of range; Hartley, Monarto, Waitpinga]
3 of 6 subregionsFlinders Lofty BlockLeast Concern
, Rare
3 of 5 subregionsEyre Yorke BlockLeast Concern
3 of 6 subregionsMurray Darling DepressionLeast Concern
, Near Threatened
Murray Scroll Belt (RIV06)RiverinaNear Threatened
  (Probable Decline)
8 of 8 subregionsGawlerLeast Concern
4 of 4 subregionsGreat Victoria DesertLeast Concern
3 of 3 subregionsNullarborLeast Concern
2 of 4 subregionsSimpson Strzelecki DunefieldsLeast Concern
7 of 7 subregionsStony PlainsLeast Concern
4 of 4 subregionsChannel CountryLeast Concern
, Near Threatened
3 of 3 subregionsCentral RangesLeast Concern
2 of 2 subregionsFinkeLeast 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. Lineare from the Latin 'linaria' meaning linear; referring to the species linear leaves.
Distribution:
Found across South Australia except on kangaroo island, growing in a variety of habitats and soil types. Also found in states. 
Status:
Native. Common in South Australia. Rare in Tasmania. Common in the other states.
Plant description:
Annual or rarely biennial herb to 50 cm high, at least base of plants covered in irregularly branched or stellate hairs. Basal leaves to 10 cm long, pinnately lobed, lobes lanceolate to linear, toothed or entire, stem leaves to 10 cm long, pinnately- or 3-lobed to entire and thread-like. Inflorescence a terminal spike with chocolate-brown to olive-green. Flowering between July and September.
Fruit type:
Brown oblong to slightly obovoid pod to 7 mm long and 2 mm wide.
Seed type:
Brown ovoid seed to 1.2 mm long and 0.8 mm wide.
Embryo type:
Bent.
Seed collecting:
Collect maturing pods those turning pale brown with brown 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)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
17545 (3.86 g)
17500 (3.92 g)
>6026-Oct-2004MOL 4632
Gairdner-Torrens
28-Mar-2006100%-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.