Seeds of South Australia
Ficinia nodosa (Cyperaceae)
Knobby club-rush
List of species for Ficinia
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Seed collecting:
January to December
Herbarium regions:
Nullarbor, 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
IBRA regions
SUMMARY
Mount Gambier (SVP02)Southern Volcanic Plain
 Least Concern
Bridgewater (NCP01)Naracoorte Coastal Plain
 Least Concern
Glenelg Plain (NCP02) 
 Least Concern
Lucindale (NCP03) 
 Least Concern
Tintinara (NCP04) 
 Least Concern
Kangaroo Island (KAN01)Kanmantoo
 Least Concern
Fleurieu (KAN02) 
 Least Concern
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Least Concern
Broughton (FLB02) 
 Least Concern
Southern Yorke (EYB01)Eyre Yorke Block
 Least Concern
St Vincent (EYB02) 
 Least Concern
Eyre Hills (EYB03) 
 Least Concern   [records under Isolepis]
Talia (EYB04) 
 Least Concern
Eyre Mallee (EYB05) 
 Least Concern
Murray Mallee (MDD02)Murray Darling Depression
 Near Threatened   [not typical habitat]
Murray Lakes and Coorong (MDD03) 
 Least Concern
Lowan Mallee (MDD04) 
 Least Concern
Wimmera (MDD05) 
 Near Threatened
Yalata (NUL03)Nullarbor
 Rare   (IUCN: RA d(ii))
IBRA regions
DISPLAY ALL
Mount Gambier (SVP02)Southern Volcanic PlainLeast Concern
4 of 4 subregionsNaracoorte Coastal PlainLeast Concern
2 of 2 subregionsKanmantooLeast Concern
2 of 6 subregionsFlinders Lofty BlockLeast Concern
5 of 5 subregionsEyre Yorke BlockLeast Concern
4 of 6 subregionsMurray Darling DepressionLeast Concern
, Near Threatened
Yalata (NUL03)NullarborRare
  (IUCN: RA d(ii))
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 Ficinia]
Name derivation:
Ficinia named after Heinrich David Auguste Ficinia (1782-1857), a German botanist, physician, naturalist and professor of physics and chemistry. Nodosa from the Latin 'nodus' meaning knot or node; referring to the flower-head.
Distribution:
Found in the southern part of South Australia, especially along the coast. Also found in Western Australia, Queensland, New South Wales, Victoria and Tasmania.
Status:
Native. Common in South Australia. Common in the other states.
Plant description:
An erect rhizomatus sedge to 1 m tall. Stems are round and the leaves are reduced to sheaths. Flowers occur in rounded balls at the end of the stems. Flowers all year round.
Fruit type:
Round, brown ball at the end of stems, containing numerous seeds.
Seed type:
Very tiny orange spherical seeds about the size of a sand grain, less than 1mm long.
Embryo type:
Capitate.
Seed collecting:
Collect seed-heads that are brown and come off easily with your fingers.
Seed cleaning:
Place the seed-heads in a tray to dry for a week. Then rub the heads by hand and use a fine sieve to separated the unwanted material. Be careful as the seeds are very small. Seeds are orange brown and hard. 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 100%.
Seed germination:
Seeds are non-dormant, viable seed should germinate readily.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
34380
34380
>5725-May-2004MKJ 33
South Eastern
1-Sep-2004100%+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.
Germination table:
DateResultT0T50Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod
April 2010100%14d14d Stored at -18°C (5year). Leaching in warm water with 5 drops of Tween (48hrs)
1% w/v agar
Incubated under spring/autumn conditions
July 200484%17dNA Surface sterilised with 20% H2O2.
Wet filter paper placed over wettex sponge.
Incubated under spring/autumn conditions
August 200675%11d18d Stored at -18°C (1year). Leaching in warm water with 5 drops of Tween (48hrs)
Wet filter paper placed over wettex sponge. Irrigated with RO water
Incubated under spring/autumn 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)