Plants of
South Australia
Darwinia micropetala
Myrtaceae
Small Darwinia
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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
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Oodnadatta
Renmark
Wudinna
Keith
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Botanical art

Kath Alcock paintings: 3.

Etymology

Darwinia named after Dr Erasmus Darwin (1731-1802), an English physician, poet and grandfather of the great naturalist, Charles Darwin. Micropetala from the Greek 'mikros' meaning small and 'petalum' meaning petal, referring to the species' small flowers.

Distribution and status

Found on Kangaroo Island and the South-East in South Australia, growing in swales and around the edges of lakes, often with Melaleuca brevifolia. Also found in Victoria. Native. Common in South Australia. Rare in Victoria.
Herbarium regions: Kangaroo Island, South Eastern
NRM regions: Kangaroo Island, South East
AVH map: SA distribution map (external link)

Plant description

Small erect wiry shrub to 50 cm high. Leaves grey-green, opposite, to 3 mm long and 0.5 mm wide; linear and triquetrous to obovate with a concave-convex, warty surface. Inflorescence in small terminal compound head with white flowers borne in upper leaf axils . Flowering between June and October. Fruits are small, brown nut-like fruit enclosed in the hypanthium and crowned by persistent sepals and petals.

Seed collection and propagation

Collect seeds between October and December. Collect fruit heads that are darkening, turning brown and drying off. Rub the flower parts in your palm to see if there is any seed. Place the heads in a tray and leave to dry for a week. Then rub the heads with your hands or a rubber bung 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.

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

19,900 (11.54 g)
50+23-Jan-2007TST161
Kangaroo Island
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.