Seeds of South Australia
Eucalyptus largiflorens (Myrtaceae)
Black Box
List of species for Eucalyptus
Display more images
Click on an image to enlarge it
Seed collecting:
January to December
Herbarium regions:
Lake Eyre, Flinders Ranges, Eastern, Northern Lofty, Murray, Southern Lofty, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Eyre Peninsula, Northern and Yorke, South Australian Murray-Darling Basin, South East
IBRA regions
SUMMARY
Fleurieu (KAN02)Kanmantoo
 Endangered   (IUCN: EN D)   [Some incorrect records. Sander Grove correct records = found along watercourses; low number of plants probably declining]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)   [in Gawler flood plains area; limited habitat; threatened by urbanisation]
Broughton (FLB02) 
 Vulnerable   (IUCN: VU D2)
Olary Spur (FLB03) 
 Rare   (IUCN: RA d(ii))
St Vincent (EYB02)Eyre Yorke Block
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)
South Olary Plain (MDD01)Murray Darling Depression
 Vulnerable   (IUCN: VU D2)   [limited habitat; changing water regimes a threat]
Murray Mallee (MDD02) 
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)   [restricted to river & depressions]
Wimmera (MDD05) 
 Rare   (IUCN: RA d(ii))
Braemer (MDD07) 
 Rare   (IUCN: RA d(i))
Murray Scroll Belt (RIV06)Riverina
 Near Threatened   (Definite Decline)   [restricted to river & depressions]
Barrier Range (BHC01)Broken Hill Complex
 Rare   (IUCN: RA d(ii))
Barrier Range Outwash (BHC04) 
 Least Concern
Bimbowrie (BHC05) 
 Rare   (IUCN: RA d(i))
Curnamona (BHC06) 
 Rare   (IUCN: RA d(ii))
Strzelecki Desert (SSD05)Simpson Strzelecki Dunefields
 Rare   (IUCN: RA d(ii))   [cattle graze seedlings]
Coongie (CHC06)Channel Country
 Vulnerable   (IUCN: VU D2)   [restricted]
IBRA regions
DISPLAY ALL
Fleurieu (KAN02)KanmantooEndangered
  (IUCN: EN D)   [Some incorrect records. Sander Grove correct records = found along watercourses; low number of plants probably declining]
3 of 6 subregionsFlinders Lofty BlockRare
, Vulnerable
St Vincent (EYB02)Eyre Yorke BlockVulnerable
  (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)
4 of 6 subregionsMurray Darling DepressionRare
, Vulnerable
Murray Scroll Belt (RIV06)RiverinaNear Threatened
  (Definite Decline)   [restricted to river & depressions]
4 of 4 subregionsBroken Hill ComplexLeast Concern
, Rare
Strzelecki Desert (SSD05)Simpson Strzelecki DunefieldsRare
  (IUCN: RA d(ii))   [cattle graze seedlings]
Coongie (CHC06)Channel CountryVulnerable
  (IUCN: VU D2)   [restricted]
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 Eucalyptus]
Name derivation:
Eucalyptus from the Greek 'eu' well and 'calyptos' covered; alluding to the cap or lid which covers the stamens in the bud. Largiflorens from the Latin 'largus' meaning abundant and 'florens' meaning blooming; referring to the plentiful but small and non-showy flowers.
Distribution:
Found in the eastern part of South Australia, predominately along the Murray River, growing in grassy woodland on heavy clay soils subject to periodic inundation, usually on floodplains. Also found in Queensland, New South Wales and Victoria.
Status:
Native. Common in South Australia. Common in the other states.
Plant description:
Single-stemmed trees to 20 m high with smooth white bark only on upper branches, rough, deeply furrowed and dark-grey below. Adult leaves to 180 mm long and 20 mm wide, alternate narrow-lanceolate dull- bluish. Flowers in groups of 7-11, terminal. Buds to 5 mm long and 3 mm wide, smooth, bud-cap cone-shaped shorter than the base. Flowers white appearing in winter and summer.
Fruit type: 
Cup-shaped to barrel-shaped fruit to 5 mm long and 5 mm wide, smooth, contracted slightly at the orifice, with a narrow rim and descending disk, valves  3-5 enclosed below the rim.
Seed type:
Brown ovoid seed to 4 mm long and 3 mm wide.
Embryo type:
Folded.
Seed collecting:
Collect mature fruits that are dark and hard (difficult to break with a finger nail) with the valves un-open any time of year. 
Seed cleaning:
Leave the fruits in a breathable container in a dry room for at least a week. This allows the valves on the fruit to open and release the seeds. Separate the seeds by placing all the materials into a bucket and shaking it 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 but can be very similar in shape and colour. With finer sieves, the seeds can be separated from the frass but this is not essential for storage or propagation.
Seed germination:
Seeds are non-dormant, viable seed should germinate readily.
Germination table:
DateResultT0T50Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod
March 201496%8d17d None
70mm glass petri dishes on 1% w/v agar
Incubated under winter conditions
March 201492%8d8d None
70mm glass petri dishes on 1% w/v agar
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)