Plants of
South Australia
Pultenaea pedunculata
Leguminosae
Matted Bush-pea
Display all 10 images
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
Enlarge Map
Copy Map
Copy Map
Display IBRA region text

Botanical art

Kath Alcock paintings: 4.

Etymology

Pultenaea named after Richard Pulteney (1730-1801), an English physician, botanist and biographer of Carl Linnaeus. Pedunculata from the Latin 'pedunculus' meaning a little foot; referring to the long flower stalk (peduncle).

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 in dry sclerophyll woodland on a variety of soils. Also found in New South Wales, Victoria and Tasmania. Native. Uncommon in South Australia. Rare in New South Wales. Common in the other states.
Herbarium regions: Eyre Peninsula, Northern Lofty, Murray, Southern Lofty, Kangaroo Island, South Eastern
NRM regions: Adelaide and Mount Lofty Ranges, Eyre Peninsula, Kangaroo Island, South Australian Murray-Darling Basin, South East
AVH map: SA distribution map (external link)

Plant description

Prostrate, mat-forming shrub to 20 cm high with stems up to several meters long, covered with whitish hairs. Leaves alternate, narrow-elliptic, to 11 mm long and 2 mm wide, sparsely hairy with a recurved point at the tip. Flowers solitary orange-yellow with reddish markings pea-flower on a long stalk to 20 mm long. Flowering between August and December. Fruits are hairy brown ovoid pod to 5 mm long, containing two seeds. Seeds are shiny, black, semi-flat reniform seed to 2.5 mm long and 1.8 mm wide, with a creamy aril. Seed embryo type is bent.

Seed collection and propagation

Collect seeds between October and January. Collect maturing pods, those that are brown or turning brown and contain hard black seeds inside. 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 average, at 80%. 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:
  Hide
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA670 (1.6 g)40+1-Dec-2015JRG257
Southern Lofty
2-May-201755%-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:
  Display