Plants of
South Australia
Haeckeria cassiniiformis
Compositae
Dogwood Haeckeria
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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
Mount Gambier
Oodnadatta
Renmark
Wudinna
Keith
Yunta
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Etymology

Haeckeria named after Dr G. Haecker (1789-1864), a German botanist. Cassiniiformis means shaped like the genus Cassinia, referring to the species' habit and flower-heads.

Distribution and status

Endemic to South Australia and found mainly on Eyre Peninsula. Native. Rare in South Australia. More common after disturbance (e.g. fire, road work).
Herbarium regions: Eyre Peninsula, Northern Lofty
NRM regions: Adelaide and Mount Lofty Ranges, Eyre Peninsula
AVH map: SA distribution map (external link)

Plant description

Short-lived shrub to 1 m high with stems erect, rigid, sparsely branched, striate; minutely glandular-pubescent; pale-brown. Leaves spreading, linear, broadened at the base; obtuse, to 20 mm long and 0.8 mm wide; subglabrous to scabrous, gland-dotted, dark-green, with involute margins, sometimes in axillary fascicles on the older branchlets. Flower-heads dense, rounded, subglobular to hemispherical, to 5.5 cm diameter, terminating leafy branches with creamy-white flowers; corolla yellow. Flowering between October and March. Fruits are light-cream, dense round daisy-head. Seeds are brown cylindrical seed to 1.1 mm long and 0.5 mm wide, covered in fine tubercules. Seed embryo type is spathulate.

Seed collection and propagation

Collect seeds between December and May. Collect heads that are matured, cream and contain brown seeds. Place the heads in a tray for one to two week to dry. Then rub the heads gently with your hands to dislodge the seeds. Use a sieve to separate any 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 are non-dormant, viable seed should germinate readily.

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
10,300 (0.96 g)
10,300 (0.96 g)
1512-Feb-2009TST694
Eyre Peninsula
20-Jul-2009100%+5°C, -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.