Seeds of South Australia
Lepidium desvauxii (Cruciferae)
Bushy Peppercress
List of species for Lepidium
Click on an image to enlarge it
Seed collecting:
January to December
Herbarium regions:
Eyre Peninsula, Kangaroo Island
NRM regions:
Eyre Peninsula, Kangaroo Island
IBRA region
Kangaroo Island (KAN01)Kanmantoo
 Rare   (IUCN: RA d(ii))   [around the coast]
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. Desvauxii named after Nicaise Auguste Descvaux (1784-1856), a French botanist and director of the botanic garden in Angers, France.
Distribution:
Found on Kangaroo Island in South Australia with an isolated collection from Flinders Island, growing in coastal habitats. Also found in Western Australia, Victoria and Tasmania.
Status:
Native. Rare in South Australia. Rare in Western Australia and Victoria. Common in Tasmania.
Plant description:
Perennial herb to 40 cm high with erect to spreading hairy stems. Basal leaves pinnate, the lobes toothed, terminal lobe the largest, with often large, coarse hairs, stem leaves spathulate to narrowly wedge-shaped, toothed near apex, base tapering, marginal hairs arising from warty projection, often bilobed. Inflorescence an elongating spike with tiny white flower. Flowers possibly throughout the year.
Fruit type:
Brown ovoid capsule to 3 mm long and 3 mm wide, glabrous, wings narrow, forming small apical notch.
Seed type:
Brown reinform seed to 1.9 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.
Seed viability:
From one collection, the seed viability was high, at 95%.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
3100 (1.38 g)
3100 (1.38 g)
25+11-Nov-2005TST597
Kangaroo Island
20-Jul-200995%+5°C, -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.