Seeds of South Australia
Lepidium muelleri-ferdinandi (Cruciferae)
Mueller's Peppercress
List of species for Lepidium
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Seed collecting:
September to March
Herbarium regions:
North Western, Lake Eyre, Flinders Ranges, Eastern
NRM regions:
Alinytjara Wilurara, South Australian Arid Lands
IBRA regions
SUMMARY
Southern Flinders (FLB04)Flinders Lofty Block
 Rare   (IUCN: RA d(i,ii))   [post fire ephemeral?]
Northern Flinders (FLB05) 
 Least Concern
Gawler Volcanics (GAW02)Gawler
 Rare   (IUCN: RA d(ii))
Arcoona Plateau (GAW04) 
 Rare   (IUCN: RA d(ii))
Torrens (GAW06) 
 Rare   (IUCN: RA d(ii))
Roxby (GAW07) 
 Least Concern
Maralinga (GVD03)Great Victoria Desert
 Rare   (IUCN: RA d(ii))
Kintore (GVD04) 
 Least Concern
Tallaringa (GVD05) 
 Least Concern
Yellabinna (GVD06) 
 Rare   (IUCN: RA d(ii))
Dieri (SSD03)Simpson Strzelecki Dunefields
 Least Concern
Warriner (SSD04) 
 Least Concern
Strzelecki Desert (SSD05) 
 Least Concern
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
Sturt Stony Desert (CHC02)Channel Country
 Least Concern
Diamantina-Eyre (CHC04) 
 Least Concern
Coongie (CHC06) 
 Least Concern
Lake Pure (CHC07) 
 Least Concern
Mann-Musgrave Block (CER01)Central Ranges
 Least Concern
Watarru (CER02) 
 Least Concern
Everard Block (CER03) 
 Least Concern
Tieyon (FIN03)Finke
 Least Concern
Pedirka (FIN04) 
 Least Concern
IBRA regions
DISPLAY ALL
2 of 6 subregionsFlinders Lofty BlockLeast Concern
, Rare
4 of 8 subregionsGawlerLeast Concern
, Rare
4 of 4 subregionsGreat Victoria DesertLeast Concern
, Rare
3 of 4 subregionsSimpson Strzelecki DunefieldsLeast Concern
6 of 7 subregionsStony PlainsLeast Concern
4 of 4 subregionsChannel CountryLeast Concern
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 Lepidium]
Name derivation:
Lepidium from the Greek 'lepis' meaning a scale; referring to the appearance of the fruits. Muelleri-ferdinandi named after Ferdinand von Mueller (1825-1896), botanist, plant collector and Government Botanist of Victoria.
Distribution:
Found in the northern part of South Australia, growing in a variety of habitats in ow lying depression. 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:
Erect, annual or ephemeral herb to 20 cm high, stems with long spreading hairs. Leaves to 30 mm long and 2.5 mm wide, pinnate with linear lobes, tending to fall in mature plants. Inflorescence an elongating spike with small white flowers. Flowering between July and January.
Fruit type:
Brown elliptic to ovate pod to 6 mm long and 3 mm wide, wings in upper half forming narrow notch at the apex.
Seed type:
Orange reinform seed to 2.2 mm long and 1.2 mm wide, with fine tuberculated surface.
Embryo type:
Bent.
Seed collecting:
Collect maturing pods those turning pale brown with hard 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
BGA37900 (24.58 g)50+25-Sep-2007DJD856
Lake Eyre
19-Sep-2008100%-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.