Seeds of South Australia
Eucalyptus pimpiniana (Myrtaceae)
Pimpin Mallee
List of species for Eucalyptus
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Seed collecting:
January to December
Herbarium regions:
North Western, Nullarbor
NRM region:
Alinytjara Wilurara
IBRA regions
Commonwealth Hill (GAW08)Gawler
 Rare   (IUCN: RA d(i,ii))
Maralinga (GVD03)Great Victoria Desert
 Least Concern
Yellabinna (GVD06) 
 Least Concern
Carlisle (NUL01)Nullarbor
 Data Deficient
Nullarbor Plain (NUL02) 
 Rare   (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 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. Pimpiniana is from the Aboriginal name for the plant.
Distribution:
Found in the western part of South Australia, in the Great Victoria Desert, growing on red sand on plains and dunes in open mallee shrubland. Also found in Western Australia.
Status:
Native. Common in South Australia. Uncommon in Western Australia.
Plant description:
Multi-stemmed, dense crowned, low growing mallee to 2 m high with smooth pinkish-grey to tan to white bark throughout. Juvenile leaves ovate to lanceolate, dull, green. Adult leaves to 140 mm long and 33 mm wide, lanceolate to broadly lanceolate, sometimes rather thick, dull, blue-grey. Flowers in groups of 7-19 in the axils of the leaves, on long droopy stalk. Buds to 33 mm long and 11 mm wide, cylindrical to narrowly obovoid, striate or sometimes ribbed, bud-cap cone-shaped to pointy top, about as long as the hypanthium. Flowers yellow. Flowering between July and November.
Fruit type:
Woody, cylinder-shaped to barrel-shaped fruit to 22 mm long and 13 mm wide, usually faintly ribbed, with broad vertical disk and narrow rim, valves 3 or 4 below the rim.
Seed type:
Dark brown ovoid seed to 4 mm long and 2 mm wide, with a wing-like margin and reticulated 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 one collection, the seed viability was high, at 90%.
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
9318 (19.8 g)
9500 (20.4 g)
21-Apr-2005BS944890
North Western
31-Mar-200690%-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.