Seeds of South Australia
Eucalyptus rugosa (Myrtaceae)
Kingscote Mallee
List of species for Eucalyptus
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Seed collecting:
January to December
Herbarium regions:
Eyre Peninsula, Murray, Yorke Peninsula, Southern Lofty, Kangaroo Island, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Eyre Peninsula, Kangaroo Island, Northern and Yorke, South Australian Murray-Darling Basin, South East
IBRA regions
Bridgewater (NCP01)Naracoorte Coastal Plain
 Rare   (IUCN: RA d(i,ii))   [localised to Martins Washpool; edge of range]
Tintinara (NCP04) 
 Least Concern
Kangaroo Island (KAN01)Kanmantoo
 Least Concern   [widespread & stable]
Fleurieu (KAN02) 
 Vulnerable   (IUCN: VU B2ab(i,ii,iii); D2)   (Probable Decline)   [health of trees not good; restricted to coast]
Southern Yorke (EYB01)Eyre Yorke Block
 Least Concern
Eyre Hills (EYB03) 
 Rare   (IUCN: RA d(i,ii))
Talia (EYB04) 
 Least Concern
Eyre Mallee (EYB05) 
 Rare   (IUCN: RA d(i,ii))
Murray Mallee (MDD02)Murray Darling Depression
 Rare   (IUCN: RA d(i,ii))   [only near Finniss; taxo issues - integrades with E bracycalyx]
Murray Lakes and Coorong (MDD03) 
 Near Threatened
Lowan Mallee (MDD04) 
 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. Rugosa from the Latin 'rugosus' meaning wrinkled, referring to the buds and fruits.
Endemic to South Australia and found along the coast from Fowlers Bay to the upper South-east growing on shallow, well-drained soils over limestone in mallee shrubland.
Native. Uncommon in South Australia.
Plant description:
Multi-trunked mallee to 10 m high with smooth, pink to yellow-grey to cream bark  throughout. Branchlets with glands present in the pith. Juvenile leaves ovate, dull, green to slightly blue-green. Adult leaves to 120 mm long and 30 mm wide, lanceolate to broad-lanceolate, glossy green. Flowers in groups of 7-13 in leaf axils. Buds to 15 mm long and 8 mm wide, angled or ribbed, bud-cap flattened to round, shorter and narrower than the base. Flower white appearing in spring and autumn.
Fruit type:
Cup-shaped to cone-shaped fruit to 15 mm long and 10 mm wide, angled or ribbed, tapering to the stalk or lacking individual stalks; disc descending, valves 3 or 4 same level or slightly above rim.
Seed type:
Red pyramidal seed to1.5 mm long and 1 mm wide with angled sides and reticulate surface.
Embryo type:
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) 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 germination:
Seeds are non-dormant, viable seed should germinate readily.