Plants of
South Australia
Pomaderris paniculosa ssp. paniculosa
Rhamnaceae
Inland Pomaderris,
Mallee Pomaderris
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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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Botanical art

Kath Alcock paintings: 3

Prior names

Pomaderris oraria, partly

Common names

Inland Pomaderris

Mallee Pomaderris

Etymology

Pomaderris from the Greek 'psma' meaning a lid and 'derris' meaning skin; referring to the membranous valve by which the fruitlets of many species open. Paniculosa from Latin referring to the flower clustered in panicle.

Distribution and status

Found in the southern part of South Australia, growing in a wide range of habitats especially common on limestone. Also found in Western Australia, New South Wales and Victoria. Native. Common in South Australia. rare in the other states.
Herbarium regions: Flinders Ranges, Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, Kangaroo Island, South Eastern, Green Adelaide
NRM regions: Adelaide and Mount Lofty Ranges, Eyre Peninsula, Kangaroo Island, Northern and Yorke, South Australian Arid Lands, South Australian Murray-Darling Basin, South East
AVH map: SA distribution map (external link)

Plant description

Perennial shrub to 50 cm high. Leaves to 2 cm long and 15 mm wide, ovate to broad- elliptic, margins crenate, often with a whitish border, upper surface glabrous, lower surface tomentose often with rusty stellate hairs. Inflorescence a loose panicle with clusters of yellow flowers, sepals persistant in fruit, petals absent. Flowering between August and November. Fruits are brown papery capsule. Seeds are brown ovoid seed to 2.5 mm long and 1.5 mm wide. Seed embryo type is spatulate fully developed.

Seed collection and propagation

Collect seeds between December and February. Collect fruit heads that are darkening and have a fluffy appearance. Rub the flower parts in your palm to see if there is any seed, which should be brown and hard. 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. From one collection, the seed viability was high, at 100%. This species has dormancy that can be overcome with hot water treatment for the seeds 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		20,500 (33.8 g)
20,500 (33.8 g)		3318-Dec-2003PJA70
Murray		1-Sep-2004100%+5°C, -18°C
BGA 
MSB		4,000 (3.34 g)
4,000 (3.34 g)		50+25-Nov-2009DJD1701
Eyre Peninsula		1-Jan-201295%-18°C
BGA5,800 (6.48 g)10-Dec-2014D101214MU1-Jan-201695%-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:
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We acknowledge the contributions of the South Australian Seed Conservation Centre, the Botanic Gardens of South Australia, and the Department for Environment and Water.