Seeds of South Australia
Lepidium papillosum (Cruciferae)
Warty Peppercress
List of species for Lepidium
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Seed collecting:
August to November
Herbarium regions:
Lake Eyre, Gairdner-Torrens, Flinders Ranges, Eastern, Eyre Peninsula, Northern Lofty, Murray
NRM regions:
Alinytjara Wilurara, Eyre Peninsula, South Australian Arid Lands
IBRA regions
SUMMARY
Broughton (FLB02)Flinders Lofty Block
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)   [limited habitat]
Olary Spur (FLB03) 
 Least Concern
Southern Flinders (FLB04) 
 Least Concern
Northern Flinders (FLB05) 
 Least Concern
Central Flinders (FLB06) 
 Least Concern
St Vincent (EYB02)Eyre Yorke Block
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)   [limited habitat]
Eyre Mallee (EYB05) 
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Definite Decline)   [records are questionable]
South Olary Plain (MDD01)Murray Darling Depression
 Least Concern
Murray Mallee (MDD02) 
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)   [edge of range]
Braemer (MDD07) 
 Least Concern
Murray Scroll Belt (RIV06)Riverina
 Rare   (IUCN: RA d(ii))   (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) 
 Rare   (IUCN: RA d(i,ii))
Barrier Range (BHC01)Broken Hill Complex
 Least Concern
Barrier Range Outwash (BHC04) 
 Least Concern
Bimbowrie (BHC05) 
 Least Concern
Curnamona (BHC06) 
 Least Concern
Simpson Desert (SSD02)Simpson Strzelecki Dunefields
 Rare   (IUCN: RA d(ii))
Dieri (SSD03) 
 Rare   (IUCN: RA d(ii))
Breakaways (STP01)Stony Plains
 Rare   (IUCN: RA d(ii))
Oodnadatta (STP02) 
 Rare   (IUCN: RA d(ii))
Murnpeowie (STP03) 
 Rare   (IUCN: RA d(ii))
Witjira (STP06) 
 Rare   (IUCN: RA d(ii))
Baltana (STP07) 
 Rare   (IUCN: RA d(ii))
Sturt Stony Desert (CHC02)Channel Country
 Rare   (IUCN: RA d(ii))
Coongie (CHC06) 
 Rare   (IUCN: RA d(ii))
Lake Pure (CHC07) 
 Rare   (IUCN: RA d(ii))
IBRA regions
DISPLAY ALL
5 of 6 subregionsFlinders Lofty BlockLeast Concern
, Rare
2 of 5 subregionsEyre Yorke BlockRare
, Vulnerable
3 of 6 subregionsMurray Darling DepressionLeast Concern
, Rare
Murray Scroll Belt (RIV06)RiverinaRare
  (IUCN: RA d(ii))   (Probable Decline)
5 of 8 subregionsGawlerLeast Concern
, Rare
4 of 4 subregionsBroken Hill ComplexLeast Concern
2 of 4 subregionsSimpson Strzelecki DunefieldsRare
5 of 7 subregionsStony PlainsRare
3 of 4 subregionsChannel CountryRare
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. Papillosum means covered with nipples or minute lobes; referring to the bladder-like hairs on the stems and fruits.
Distribution:
Found mainly in the east central part of South Australia, growing on heavy soils near lakes, rivers and streams in semi-arid areas. Also found in Western Australia, Queensland, New South Wales and Victoria.
Status:
Native. Common in South Australia. Uncommon in Western Australia, Queensland and Victoria. Common in New South Wales.
Plant description:
Erect ephemeral or annual herb to 30 cm high, mature plants often purplish, stems covered with white, inflated, bladder-like hairs. Basal leaves linear-cuneate, to 10 cm long, toothed to bipinnate lobed, stem leaves becoming smaller, finally sessile, broadly toothed. Inflorescence an elongating spike with tiny white flowers, petals absent. Flowering between June and September.
Fruit type:
Red-brown ellipsoid pod to 6 mm long and 5 mm wide, with scattered needle-like hairs, winged in the upper half forming an open notch about one-fifth of the length of the fruit.
Seed type:
Orange-brown reinform seed to 1.5 mm long and 0.9 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.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA84116-Jun-2010KHB440
Flinders Ranges
1-Jan-2012NCT
BGA45115-Jun-2010KHB427
Flinders Ranges
1-Jan-2012NCT
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.