Plants of
South Australia
Pultenaea canaliculata
Leguminosae
Coast Bush-pea
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Regional Species Conservation Assessments per IBRA subregion.
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Near threatened
Rare
Vulnerable
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Adelaide
Arkaroola
Ceduna
Coober Pedy
Hawker
Innamincka
Marla
Marree
Mount Gambier
Oodnadatta
Renmark
Wudinna
Keith
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Botanical art

Kath Alcock paintings: 5.

Etymology

Pultenaea named after Richard Pulteney (1730 – 1801), an English physician, botanist and biographer of Carl Linnaeus. Canaliculata from the Latin 'canaliculatus' meaning with small grooves; referring to the upward curving leaves forming a deep groove.

Distribution and status

Found in the southern part of South Australia, on the southern Eyre Peninsula, Kangaroo Island, Mount Lofty Ranges and the upper South-east, growing on coastal dunes and limestone cliffs. Also found in Victoria. Native. Uncommon in South Australia. Rare in Victoria.
Herbarium regions: Eyre Peninsula, Southern Lofty, Kangaroo Island, South Eastern
NRM regions: Adelaide and Mount Lofty Ranges, Eyre Peninsula, Kangaroo Island, South East
AVH map: SA distribution map (external link)

Plant description

Rigid, spreading shrub to 2 m high with terete stems covered in dense silky hairs. Leaves alternate, terete, to 12 mm long and 1.5 mm wide, margins curved upwards, both surface densely hairy, stalk appressed to stem. Inflorescence terminal clusters of 2–4 yellow, orange and pea-flowers, often partially hidden among dense leaves. Flowering between September to November. Fruits are hairy brown ovoid pod to 5 mm long. Seeds are brown with black mottled reniform seed to 2.5 mm long and 1.5 mm wide, with a cream aril. Seed embryo type is bent.

Seed collection and propagation

Collect seeds between November and January. Collect maturing pods, those that are brown or turning brown and contain hard seeds inside. Might have to search for the pods as it can be partially hidden among dense leaves. Place the pods in a paper bag and leave to dry for one to two weeks. Then rub the pods with 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 95%. This species has physical dormancy that needs to be overcome for the seed to germinate. The seed coat needs to be ruptured so that water can enter the seed before germination can occur. Methods to rupture the seed coat include scarification with sand paper or nicking the seed coat with a sharp blade or hot water treatment by immersion in boiling water.

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
500 (1.2 g)
1,200 (2.94 g)
100+18-Dec-2015DJD3311
Kangaroo Island
2-May-201795%-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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