Plants of
South Australia
Correa aemula
Rutaceae
Hairy Correa
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Regional Species Conservation Assessments per IBRA subregion.
Least concern
Near threatened
Rare
Vulnerable
Endangered
Critically endangered
Extinct
Data deficient
Adelaide
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Coober Pedy
Hawker
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Botanical art

Kath Alcock paintings: 2.

Etymology

Correa named after Jose Francisco Correa de Serra (1751-1823), a Portuguese botanist. Aemula from the Latin 'aemulus' meaning like; referring to the similarity of this species to other Correa.

Distribution and status

Found in the southern Mount Lofty Ranges and on Kangaroo Island in South Australia, growing on sandy or rocky soils in open forests and heathy woodland. Also found in Victoria. Native. Rare in South Australia. Rare in Victoria.
Herbarium regions: Murray, Southern Lofty, Kangaroo Island
NRM regions: Adelaide and Mount Lofty Ranges, Kangaroo Island, South Australian Murray-Darling Basin
AVH map: SA distribution map (external link)

Plant description

Erect to spreading shrub to 2 m high and 2 m wide with densely hairy stems. Leaves thin, orbicular or ovate to ovate-lanceolate to 4 cm long and 2.5 cm wide, apex acute to slightly rounded, surfaces sparsely to moderately hairy. Inflorescence solitary (rarely 2), axillary or terminal with hanging tubular, green or green-grey (darkening to mauve-purple with age) flowers. Flowering between September and December. Fruits are brown capsule to 8 mm long, enclose by the sepals Seeds are dark brown reinform-oblong seed to 5 mm long and 2 mm wide, with a smooth surface. Seed embryo type is linear fully developed.

Seed collection and propagation

Collect seeds between January and February. Collect mature capsules, those that are turning a pale straw colour and contain hard seeds, either by hands or place small breathable bags over immature capsules to collect seed. Capsules maybe hard to see as it is enclose by the sepals. Place the capsules in a tray and leave to dry for a weeks. Then rub the capsules gently by hand to dislodge the seeds. Be very careful as the seed coat is thin and easily damaged. 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%. This species has morphophysiological dormancy and can be difficult to germinate.

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
1,400 (7.47 g)
1,400 (7.47 g)
60+18-Jan-2006DJD349
Southern Lofty
8-Aug-2006100%-18°C
BGA16340+26-Jan-2007KHB71
Northern Lofty
1-Aug-200740%-18°C
BGA330 (2 g)22-Dec-2008DJD1414
Southern Lofty
1-Jan-201220%-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.