Seeds of South Australia
Acacia notabilis (Leguminosae)
Stiff Golden Wattle
List of species for Acacia
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Seed collecting:
November to January
Herbarium regions:
Gairdner-Torrens, Flinders Ranges, Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Eyre Peninsula, Northern and Yorke, South Australian Arid Lands, South Australian Murray-Darling Basin, South East
IBRA regions
SUMMARY
Tintinara (NCP04)Naracoorte Coastal Plain
 Rare   (IUCN: RA d(i,ii))   [edge of range, mallee spp, too few records]
Fleurieu (KAN02)Kanmantoo
 Endangered   (IUCN: EN D)
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Endangered   (IUCN: EN D)   [edge of range; remnant pop at Sellicks cliffs, northern records planted]
Broughton (FLB02) 
 Least Concern
Olary Spur (FLB03) 
 Least Concern   [edge of range]
Southern Flinders (FLB04) 
 Least Concern
Central Flinders (FLB06) 
 Near Threatened   [northern edge of range; likes fire]
Southern Yorke (EYB01)Eyre Yorke Block
 Near Threatened   (Probable Decline)
St Vincent (EYB02) 
 Least Concern
Eyre Hills (EYB03) 
 Least Concern
Talia (EYB04) 
 Least Concern
Eyre Mallee (EYB05) 
 Least Concern
South Olary Plain (MDD01)Murray Darling Depression
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Murray Mallee (MDD02) 
 Rare   (IUCN: RA d(ii))
Lowan Mallee (MDD04) 
 Rare   (IUCN: RA d(i,ii))   [likes fire; should be more records ]
Myall Plains (GAW01)Gawler
 Least Concern
Gawler Volcanics (GAW02) 
 Least Concern
Gawler Lakes (GAW03) 
 Rare   (IUCN: RA d(i,ii))
Yellabinna (GVD06)Great Victoria Desert
 Rare   (IUCN: RA d(i,ii))
IBRA regions
DISPLAY ALL
Tintinara (NCP04)Naracoorte Coastal PlainRare
  (IUCN: RA d(i,ii))   [edge of range, mallee spp, too few records]
Fleurieu (KAN02)KanmantooEndangered
  (IUCN: EN D)
5 of 6 subregionsFlinders Lofty BlockLeast Concern
, Near Threatened
, Endangered
5 of 5 subregionsEyre Yorke BlockLeast Concern
, Near Threatened
3 of 6 subregionsMurray Darling DepressionRare
3 of 8 subregionsGawlerLeast Concern
, Rare
Yellabinna (GVD06)Great Victoria DesertRare
  (IUCN: RA d(i,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 Acacia]
Name derivation:
Acacia from the Greek 'akakia' and derived from 'ake' or 'akis' meaning a sharp point or thorn and 'akazo' meaning to sharpen. Dioscorides the Greek physician and botanist, used the word in the 1st century AD for the Egyptian thorn tree, Acacia arabicaNotabilis from the Latin 'notabilis' meaning remarkable, worthy of note, referring to its appearance.
Distribution:
Found in the southern part of South Australia except for Kangaroo Island and the South-East, growing in low woodland or open scrub vegetation on brown or shallow calcareous, hard alkaline, red duplex soil. Also found New South Wales and Victoria.
Status:
Native. Common in South Australia. Rare in the other States.
Plant description:
Tall, glabrous, spreading shrubs to 3 m high with smooth reddish-brown bark and spreading, almost terete branches. Leaves oblong-lanceolate, usually oblique to 15 cm long and 25 mm wide, straight or curved, flat, thick and rigid; glaucous with mid-vein prominent, lateral veins numerous and fine; margins thickened, yellowish vein-like; apex obtuse or acute, narrowed towards the base; glands on upper margin near the base. Flower-spike in axillary racemes, usually shorter than the leaves, consisting of 4-16 globular deep yellow flower-heads. Flowering between July and October.
Fruit type:
Brown, narrowly oblong pod to 7 cm long and 10 mm wide; straight, flat but raised over seeds with margins thickened vein-like.
Seed type:
Hard black ovoid seed to 6 mm along and 4 mm wide.
Embryo type:
Investing.
Seed collecting:
Collect mature pods that are turning brown, with hard, dark seeds inside.
Seed cleaning:
Place the pods in a tray and leave to dry for 1-2 weeks or until the pods begin to split. Then rub the dried pods to dislodge the seeds. Use a sieve to separate any unwanted material. 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 germination:
This species has physical dormancy that needs to be overcome for the seed to germinate (e.g. nicking or softening the seed coat).
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
2455
2455
3916-Dec-2003MKJ 9
Yorke Peninsula
1-Sep-200490%+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
June 200490%7d11d Seed sterilised with 20% Hydrogen Peroxide with 3 drops of Tween (10min). Rinsed in sterile water. Seed coat nicked with scalpel blade.
0.8% w/v agar plates
16/8 dark/light  /  20°C Constant
November 200686%12d18d Stored at -18°C (1year). Seed coat nicked with scalpel blade.
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)