Plants of
South Australia
Correa alba var. pannosa
Rutaceae
White 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
Arkaroola
Ceduna
Coober Pedy
Hawker
Innamincka
Marla
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Oodnadatta
Renmark
Wudinna
Keith
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Botanical art

Kath Alcock paintings: 2.

Etymology

Correa named after Jose Francisco Correa de Serra (1751-1823), a Portuguese botanist. Alba from the Latin 'albus' meaning white; referring to the colour of its flowers. Pannosa from the Latin 'pannus' meaning a piece of cloth; alluding to the leaves densely covered with short hairs resembling velvet.

Distribution and status

Found in coastal areas from the Fleurieu Peninsula to Kingston in South Australia, growing on calcareous substrates. Also found in Victoria. Native. Rare in South Australia. Rare in victoria.
Herbarium regions: Southern Lofty, South Eastern
NRM regions: Adelaide and Mount Lofty Ranges, South East
AVH map: SA distribution map (external link)

Plant description

Procumbent to erect shrub to 1 m high and 1.5 m wide with scabridulous stems. Leaves broadly elliptic, to 1.5 cm long and 1.5 cm wide, densely tomentose to velvety. Inflorescence solitary or in clusters of 2-5 on short axillary branches with cup-shaped, white, cream or pink flowers. Flowers in spring and summer. Fruits are pale brown capsule to 7 mm long, enclose by the sepals. Seeds are dark mottled brown reniform seed to 5 mm long and 3 mm wide, with a smooth surface. Seed embryo type is linear fully developed.

Seed collection and propagation

Collect seeds between November 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 average, at 75%. 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 (10.69 g)
1,200 (9 g)
7015-Nov-2005MKJ139
Southern Lofty
8-Aug-200675%-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.