Plants of
South Australia
Olearia rudis
Compositae
Purple Daisy-bush
Display all 16 images
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
Enlarge Map
Copy Map
Copy Map
Display IBRA region text

Botanical art

Kath Alcock paintings: 2.

Etymology

Latin 'olearius' pertaining to oil, from 'olea' olive and 'rudis' coarse, unformed, crude

Distribution and status

In mallee and woodland communities often on red, calcareous sand Native
Herbarium regions: Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, Kangaroo Island
NRM regions: Adelaide and Mount Lofty Ranges, Eyre Peninsula, Kangaroo Island, Northern and Yorke, South Australian Murray-Darling Basin
AVH map: SA distribution map (external link)

Plant description

Shrub or undershrub, to 1.3 m high. Leaves alternate, crowded; lamina elliptic, obovate or ovate, 15–120 mm long, 6–40 mm wide, scabrous to glabrous, green. Capitula terminal, solitary or compound corymbs of 2-8, 20–40 mm wide. Ray florets 39–75, pale blue or mauve or purple, disc florets 86–241, orange. Flowering June - October. Fruits are achenes terete, 2-3 mm long, deeply striate, glabrous or subglabrous; pappus bristles 30-40, 5 mm long, subequal.

Seed collection and propagation

Collect seeds between October and November.

Seeds stored:
  Hide
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
 
MSB

3,400 (1.96 g)
1217-Oct-2006DJD591
Yorke Peninsula
BGA35,800 (22.45 g)50+20-Oct-2010DJD1906
Murray
1-Jan-2012100%-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:
  Display