Plants of
South Australia
Schoenoplectiella dissachantha
Cyperaceae
Blunt Club-rush
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Regional Species Conservation Assessments per IBRA subregion.
Least concern
Near threatened
Rare
Vulnerable
Endangered
Critically endangered
Extinct
Data deficient
Adelaide
Arkaroola
Ceduna
Coober Pedy
Hawker
Innamincka
Marla
Marree
Mount Gambier
Oodnadatta
Renmark
Wudinna
Keith
Yunta
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Etymology

Greek 'schoinos' a rush, 'plektos' twisted and 'dis' two, 'akantha' thorn.

Distribution and status

Grows in seasonally wet open situations. Native
Herbarium regions: North Western, Lake Eyre, Nullarbor, Gairdner-Torrens, Eastern, Murray
NRM regions: Alinytjara Wilurara, South Australian Arid Lands, South Australian Murray-Darling Basin
AVH map: SA distribution map (external link)

Plant description

Annual tufted herb to 30cm high. Leaves usually reduced to sheaths. Inflorescence a cluster of 1–5 (rarely to 10) sessile spikelets. Spikelets 1-3 in a cluster, sessile, yellowish or greenish-yellow, oblong, cylindrical, obtuse, usually 7-10 mm long, many-flowered. Flowering March-April . Fruits are nut subglobose or obovoid, unequally biconvex, 1.0–1.3 mm long, 1 mm wide, closely and prominently transversely rugose, yellow-brown to black, shining.

Seeds stored:
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LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
34,500 (12.6 g)
34,500 (12.6 g)
50+12-Mar-2007RJB70963B
Gairdner-Torrens
1-Aug-200780%-18°C
BGA 
MSB
14,000 (4.76 g)
14,000 (4.76 g)
13-Mar-2007RJB70961
Gairdner-Torrens
1-Aug-200790%-18°C
BGA2,900 (1.77 g)50+11-Aug-2010TST940
Lake Eyre
1-Jan-2012100%-18°C
BGA6,700 (3.11 g)31-Aug-2016DJD3381
Lake Eyre
1-Nov-201775%+5°C, -18°C, -80°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.
Germination table:
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