Seeds of South Australia
Lepidium pseudoruderale (Cruciferae)
List of species for Lepidium
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Herbarium regions:
Nullarbor, Flinders Ranges, Murray
NRM regions:
Alinytjara Wilurara, South Australian Arid Lands, South Australian Murray-Darling Basin
IBRA regions
Fleurieu (KAN02)Kanmantoo
 Data Deficient   [questionable ID; outlier]
Northern Flinders (FLB05)Flinders Lofty Block
 Endangered   (IUCN: EN B2ab(i,ii,iii,iv,v))   (Probable Decline)   [possibly extinct]
Nullarbor Plain (NUL02)Nullarbor
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)   [restricted to caves]
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]
Germination table:
DateResultT0T50Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod
Jun-1798%714 500 mg/L gibberellic acid for 24 h;
1% agar;
Incubated under winter conditions
Jun-1796%714 500 mg/L gibberellic acid for 24 h;
1% agar;
Incubated under spring/autumn conditions
Jun-1716%14NA seeds leached in water for 24 h;
1% agar;
Incubated under spring/autumn conditions
Jun-172%21NA seeds leached in water for 24 h;
1% agar;
Incubated under winter conditions
Result: Maximum percentage of germination observed.
T0: Number of days before first germinant observed.
T50: Number of days to achieve 50% germination.
Pre-treatment: The initial treatment that the seeds received prior to placement on germination media.
Germination medium: The substrate that seeds were placed on for the duration of the germination experiment.
Incubator conditions:
Photoperiod: The duration of light exposure that the seeds were subject to during a 24 hour period.
Thermoperiod: The constant or diurnal temperatures that seeds were subject to during a 24 hour period.
Winter conditions: 15°C 20 h (3am→11pm); 5°C 4 h (11pm→3am) / 10 h light (8am→6pm); 14 h dark (6pm→8am)
Spring/Autumn conditions: 22°C 12 h (8am→8pm); 10°C 12 h (8pm→8am) / 12 h light (8am→8pm); 12 h dark (8pm→8am)
Summer conditions: 30°C 14 h (6am→8pm); 15°C 10 h (8pm→6am) / 14 h light (6am→8pm); 10 h dark (8pm→6am)