Seeds of South Australia
Acacia iteaphylla (Leguminosae)
Willow-leaf Wattle
List of species for Acacia
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Seed collecting:
October to December
Herbarium regions:
Flinders Ranges, Eyre Peninsula
NRM regions:
Adelaide and Mount Lofty Ranges, Eyre Peninsula, South Australian Arid Lands, South East
IBRA regions
Southern Flinders (FLB04)Flinders Lofty Block
 Rare   (IUCN: RA d(i,ii))   [In Pitchi Richi Pass. Verify Quorn records - could be weedy. Small extent of occurrence. In sth Flinders.]
St Vincent (EYB02)Eyre Yorke Block
 Rare   (IUCN: RA d(i,ii))   [Weedy north of Adelaide]
Eyre Hills (EYB03) 
 Vulnerable   (IUCN: VU D1)   [poss rare indig popns in this area but also poss weedy intros from Flinders]
Talia (EYB04) 
 Endangered   (IUCN: EN D)   [Coffin record poss intro]
Eyre Mallee (EYB05) 
 Rare   (IUCN: RA d(ii))
Myall Plains (GAW01)Gawler
 Rare   (IUCN: RA d(ii))
Gawler Volcanics (GAW02) 
 Least Concern   [goats]
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 arabica. Iteaphylla from the Greek 'itea' meaning willow and 'phyllon' meaning leaf, alluding to the species narrow, willow-like leaves.
Distribution:
Endemic to South Australia and found on northern Eyre Peninsula eastward to the Flinders Ranges and northern Mount Lofty Ranges growing on hillsides amongst rocky outcrops or in valleys along rocky creek banks. Widely planted & naturalised elsewhere and widespread in the Mt Lofty Ranges region.
Status:
Native. Locally common when planted but uncommon in South Australia.
Plant description:
Tall glabrous shrub to 4 m high with a single short trunk or dividing near the base, with a smooth, reddish-brown bark. Leaves green, flat, broad-linear to 14 cm long and 8 mm wide, yellowing at the margin and with a small gland on the upper margin. Inflorescent axillary racemes with globular, pale yellow flower-heads.
Fruit type:
Light brown linear flat pod to 12 cm long and 10 mm wide.
Seed type:
Hard black ellipsoid seed to 6 mm long and 3 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 viability:
From one collection, the seed viability was average, at 60%.
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
7000 (166 g)
7000 (166 g)
40-506-Nov-2005MKJ93
Eyre Peninsula
1-Aug-200660%-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.