Seeds of South Australia
Luzula densiflora (Juncaceae)
Dense Wood-rush
List of species for Luzula
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Seed collecting:
October to January
Herbarium regions:
Flinders Ranges, Eyre Peninsula, Southern Lofty, Kangaroo Island, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Eyre Peninsula, Kangaroo Island, South Australian Arid Lands, South East
IBRA regions
Mount Gambier (SVP02)Southern Volcanic Plain
 Near Threatened
Bridgewater (NCP01)Naracoorte Coastal Plain
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)
Glenelg Plain (NCP02) 
 Near Threatened
Lucindale (NCP03) 
 Rare   (IUCN: RA d(ii))
Tintinara (NCP04) 
 Vulnerable   (IUCN: VU B2ab(i,ii,iii); D2)   (Probable Decline)
Kangaroo Island (KAN01)Kanmantoo
 Vulnerable   (IUCN: VU D2)   [very hard to find; roadworks a threat]
Fleurieu (KAN02) 
 Rare   (IUCN: RA d(ii))   (Probable Decline)   [small pops; blackberries a threat]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Rare   (IUCN: RA d(ii))   (Probable Decline)   [small pops; blackberries a threat]
Talia (EYB04)Eyre Yorke Block
 Endangered   (IUCN: EN D)
Murray Lakes and Coorong (MDD03)Murray Darling Depression
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)   [not ideal habitat]
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 Luzula]
Name derivation:
Luzula possibly from the Italian 'luzziola' meaning sparkle or a fire-fly or from the Latin 'luxulae 'meaning light; probably alluding to the sparkling and quivering character of the heads when wet with dew. Densiflora from Latin for densely flowered; referring to its clusters of dense inflorescence.
Found on the southern Eyre Peninsula, Kangaroo Island, southern Mount Lofty Ranges and the South-east in South Australia, growing in moist rather shady sites, on clay, in eucalypt woodland or open grassland. Also found in New South Wales, Victoria and Tasmania.
Native. Rare in South Australia. Common in the other states.
Plant description:
Loosely tufted perennial sedge with flowering stems 40 cm high, generally exceeding leaves and with a bulbous or swollen base. Leaves flat, to 3 mm wide with densely hairy margins and an obtuse and thickened apex. Inflorescence dense clusters with many pale to reddish brown flowers at the end of a long stalk. Flowering between July and November.
Fruit type:
Dense clusters of reddish-brown fruiting spike.
Seed type:
Brown ellipsoid seed to 0.9 mm long and 0.8 mm wide, with a large white fleshy appendage at one end.
Embryo type:
Seed collecting:
Collect fruits either by picking off the mature heads, those turning brown and come-off easily or break-off the whole spikes.
Seed cleaning:
Place the heads in a tray and leave to dry for one to two weeks. Then rub the heads with a rubber bung to dislodge the seeds. Use a sieve to separate any unwanted material. Be careful, as the seeds are very small. Seeds are 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 two collections, the seed viability were high, at 100%.
Seeds stored:
LocationNo. of seeds
(weight grams)
of plants
Collection number
Collection location
% ViabilityStorage
3500 (1.09 g)
3500 (1.09 g)
Southern Lofty
BGA4800 (1.42 g)40+14-Nov-2007DJD941
Southern Lofty
19-Sep-2008100%+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.