Seeds of South Australia
Eucalyptus concinna (Myrtaceae)
Great Victoria Desert Mallee
List of species for Eucalyptus
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Seed collecting:
January to December
Herbarium regions:
North Western, Nullarbor, Gairdner-Torrens, Eyre Peninsula
NRM regions:
Alinytjara Wilurara, Eyre Peninsula, South Australian Arid Lands
IBRA regions
Eyre Mallee (EYB05)Eyre Yorke Block
 Rare   (IUCN: RA d(ii))
Myall Plains (GAW01)Gawler
 Rare   (IUCN: RA d(ii))
Gawler Volcanics (GAW02) 
 Least Concern
Gawler Lakes (GAW03) 
 Data Deficient   [inaccurate location]
Kingoonya (GAW05) 
 Least Concern
Commonwealth Hill (GAW08) 
 Least Concern
Maralinga (GVD03)Great Victoria Desert
 Least Concern
Kintore (GVD04) 
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Yellabinna (GVD06) 
 Least Concern
Carlisle (NUL01)Nullarbor
 Rare   (IUCN: RA d(ii))
Nullarbor Plain (NUL02) 
 Rare   (IUCN: RA d(ii))
Yalata (NUL03) 
 Data Deficient   [check determination]
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' meaning well and 'calyptos' meaning covered; alluding to the cap or lid which covers the stamens in the bud. Concinna from the Latin 'concinnus' meaning neat, pretty; referring to the species habit and overall appearance.
Distribution:
Found in the western part of South Australia from Lake Gairdner to the border, growing on red or white sand on plains and sand dunes in open mallee shrubland. Also found in Western Australia.
Status:
Native. Common in South Australia. Common in Western Australia.
Plant description:
Multi-stemmed mallee to 8 m tall with rough, hard, fibrous-flaky, grey-brown bark below and smooth, orange-tan to pale grey to creamy white bark above. Juvenile leaves lanceolate to broad-lanceolate, dull, green to blue-green. Adult leaves to 130 mm long and 20 mm wide, lanceolate, highly glossy, green. Flowers axillary in umbels of 7-11 flowers. Buds to 12 mm long and 9 mm wide, with smooth or slightly angled base, bud-cap flattened, smooth or ribbed shorter than the bud-base. Flowers white appearing spasmodically depending on rainfall.
Fruit type:
Woody cup-shaped to cone-shaped fruit to 11 mm long and 10 mm wide, disc level to descending, valves 3 or 4 around rim level.
Seed type:
Brown ovoid seed to 2 mm long and 1.3 mm wide, with deeply pitted surface.
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 one to two weeks. 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. 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, ranging from 80% to 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
11000 (8.7 g)
11000 (8.7 g)
50+7-Nov-2005MKJ103
Gairdner-Torrens
8-Aug-2006100%-18°C
BGA14700 (26.34 g)4516-May-2014TST1195
North Western
24-Mar-201580%-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
August 2014100%7d14d None
1% water agar
12 hrs  /  20 °C C constant
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)