Plants of
South Australia
Ozothamnus scaber
Compositae
Rough Bush-everlasting
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Regional Species Conservation Assessments per IBRA subregion.
Least concern
Near threatened
Rare
Vulnerable
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Adelaide
Arkaroola
Ceduna
Coober Pedy
Hawker
Innamincka
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Etymology

Ozothamnus, from the Greek 'ozo,' meaning to smell and 'thamnos', meaning shrub, alluding to the fragrant foliage when crushed. Scaber, from the Latin 'scaber', meaning rough, scaly, referring to the rough seed surface.

Distribution and status

Endemic to South Australia and found only in the Flinders Ranges. Native. Rare in South Australia.
Herbarium regions: Flinders Ranges, Eastern, Northern Lofty, South Eastern
NRM regions: South Australian Arid Lands, South East
AVH map: SA distribution map (external link)

Plant description

Fruits are dense cream-brown heads. Seeds are brown elliptical seed to 1 mm long and 0.5 mm wide, covered sparsely with short white hairs and with a short pappus at one end. Seed embryo type is spatulate, fully-developed.

Seed collection and propagation

Collect seeds during June. Collect mature seed heads turning a cream-brown. Place the heads in a tray and leave to dry for 1-2 weeks,then rub the heads gently with your hands to dislodge the seeds. Use a sieve to separate the 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. From one collection, the seed viability was high, at 100%.

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
3,500 (0.32 g)
3,500 (0.32 g)
50+19-Jun-2009KHB301
Flinders Ranges
20-Jul-2009100%-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.