Plants of
South Australia
Centrolepis glabra
Centrolepidaceae
Smooth Centrolepis
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Regional Species Conservation Assessments per IBRA subregion.
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Near threatened
Rare
Vulnerable
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Critically endangered
Extinct
Data deficient
Adelaide
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Botanical art

Kath Alcock paintings: 6.

Etymology

Centrolepis from the Greek 'kentron' meaning a spur and 'lepis' meaning scale, referring to the points on the bracts of Centrolepis fascicularis, the type specimen for the genus. Glabra from Latin meaning smooth, without hairs.

Distribution and status

Found on lower Eyre Peninsula, Yorke Peninsula, Kangaroo Island, southern Mount Lofty Ranges and the lower South-east growing in mud around temporary freshwater pools and stream margins. Also found in Western Australia, New South Wales, Victoria and Tasmania. Native. Rare in South Australia. Rare in Tasmania. Common in the other States.
Herbarium regions: Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, Kangaroo Island, South Eastern
NRM regions: Adelaide and Mount Lofty Ranges, Eyre Peninsula, Kangaroo Island, Northern and Yorke, South Australian Murray-Darling Basin, South East
AVH map: SA distribution map (external link)

Plant description

Annual or ephemeral herb to 8 cm high, forming small scattered tufts, dull-green or becoming reddish. Leaves few, linear to filiform, acute, to 8 cm long and 1 mm wide; lax, flattened, glabrous, innermost leaf reduced to an obtuse hyaline sheath. Flower head cylindrical, to 3 mm long and 0.7 mm wide on a long erect stalk. Flowering between October and November. Fruits are small red-brown cylindrical head at end of long stalk. Seeds are small orange-brown ovoid seed to 0.4 mm and 0.2 mm wide. Seed embryo type is broad.

Seed collection and propagation

Collect seeds between December and January. Collect whole plant that are starting to dry off and turning pale straw colour. Place the plant material in a tray for 1-2 week to dry. Then rub the pods with your hands or a rubber bung to dislodge the seeds. Pass the material through a sieve to separate the unwanted material. The finer material will contain both seeds (soft) and frass (hard) usually distinguishable from each other. With finer sieves, the seeds can be separated from the frass but this is not essential for storage or propagation. 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. From one collection, the seed viability was high, at 100%.

Seeds stored:
  Hide
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
 
MSB

19,600 (0.37 g)
10023-Nov-2007RJB75892
South Eastern
100%
BGA30,000 (0.48 g)100+21-Jan-2011JQ138
Southern Lofty
1-Jan-2012100%-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.