Plants of
South Australia
Hysterobaeckea tuberculata
Myrtaceae
Warty Baeckea
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Regional Species Conservation Assessments per IBRA subregion.
Least concern
Near threatened
Rare
Vulnerable
Endangered
Critically endangered
Extinct
Data deficient
Adelaide
Arkaroola
Ceduna
Coober Pedy
Hawker
Innamincka
Marla
Marree
Mount Gambier
Oodnadatta
Renmark
Wudinna
Keith
Yunta
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Etymology

Distribution and status

Endemic to South Australia and found only in a few areas in the north-west corner, on sand dunes. Native. Uncommon in South Australia.
Herbarium region: North Western
NRM region: Alinytjara Wilurara
AVH map: SA distribution map (external link)

Plant description

Woody shrub with prominent tuberculate oil glands on the branchlets, leaves and hypanthium. Branchlets white. Leaves appressed and not overlapping to slightly spreading and overlapping the next pair for half their length, or rarely crowded, linear to oblong, to 3.1mm long, semiterete. Flowers solitary in leaf axils, at least 7mm across with a woody base densely covered in tuberculate oil glands. Fruits are woody brown capsule with 2-3 valves. Seeds are angular, brown seed to 2mm long and 1mm wide covered in a fine reticulate.

Seed collection and propagation

Collect seeds between October and December. Collect mature capsules, those that are turning brown, hard with non-open valves. Place the capsules in a tray and leave to dry for a week or two. 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 and frass usually distinguishable from each other. 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.

Seeds stored:
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LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
77,000 (53.8 g)
1,500 (27.1 g)
31-Oct-2013DJD2795
North Western
24-Mar-20154%-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.