Seeds of South Australia
Daviesia pectinata (Leguminosae)
Barbed-wire Bitter-pea
List of species for Daviesia
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Seed collecting:
November to January
Herbarium regions:
Eyre Peninsula, Southern Lofty, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Eyre Peninsula, South East
IBRA regions
Fleurieu (KAN02)Kanmantoo
 Endangered   (IUCN: EN D)   [in Newland Head CP]
Eyre Hills (EYB03)Eyre Yorke Block
 Rare   (IUCN: RA d(ii))   [needs monitoring]
Eyre Mallee (EYB05) 
 Rare   (IUCN: RA d(i,ii))   [needs monitoring]
Murray Mallee (MDD02)Murray Darling Depression
 Endangered   (IUCN: EN D)
Murray Lakes and Coorong (MDD03) 
 Endangered   (IUCN: EN D)   (Probable Decline)   [highly localised, only 2 pops known on roadsides; have been doing translocations; new pipeline a threat]
Lowan Mallee (MDD04) 
 Endangered   (IUCN: EN B2ab(i,ii,iii); D)   (Probable Decline)
RSCA map:
Regional Species Conservation Assessments per IBRA subregion. Please click the thumbnail map.
AVH map:
Australian distribution map (external link)
SA Census:
Census of South Australian plants (external link)     [genus Daviesia]
Name derivation:
Daviesia named after Rev. Hugh Davies (1739-1821), a Welsh botanist and an Anglican clergyman. Pectinata from the Latin 'pectina' meaning a comb; referring to the comb-like teeth of the phyllobe.
Found on the southern Eyre Penin sula, southern Mount Lofty Ranges and a record near Bordertown in South Australia, growing in mallee scrublands and woodlands on dry stony or sandy soils. Also found in Victoria.
Native. Rare in South Australia. Rare in Victoria.
Plant description:
Rigid shrub to 1.5 m high, branches glabrous, very prominently angled by the decurrent bases of the phyllodes. Phyllodes flattened laterally into a vertical blade, lanceolate or linear-lanceolate, to 5 cm long, tapering into a pungent point, adnate to the stem by the 3-10 mm long-decurrent base, the lower ones longer than the upper ones, divaricate and straight or falcate, very rigid, grey-green. Flowers in dense axillary clusters with orange and a reddish centred pea-flowers. Flowering between September and November.
Fruit type:
Dark brown, flat triangular pod to 14 mm long and wide, with one seed inside.
Seed type:
Brown with black mottled reniform seed to 4 mm long and 2 mm wide, and a cream aril.
Embryo type:
Seed collecting:
Collect maturing brown seed pods from the plant using secateurs or by hand. Plant is prickly so it is advisable to wear gloves.
Seed cleaning:
Leave the pods in a paper bag to dry for at least a week. Rub the pods gently with a rubber bung to dislodge the seeds. Use a sieve to separate the seeds from unwanted material. Store the dried fruit heads with a desiccant such as dried silica beads or dry rice, in an air tight container in a cool and dry place.
Seed viability:
From two collections, the seed viability were average to high, ranging from 65% to 100%.
Seed germination:
This species has physical dormancy that needs to be overcome for the seed to germinate (e.g. nicking or softening the seed coat).
Seeds stored:
LocationNo. of seeds
(weight grams)
of plants
Collection number
Collection location
% ViabilityStorage
1300 (6.99 g)
1500 (7.9 g)
137-Dec-2004DJD 72
Eyre Peninsula
BGA3700 (35.46 g)420-Nov-2007TST236
Eyre Peninsula
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.