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.
Distribution:
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.
Status:
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:
Bent.
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)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
1300 (6.99 g)
1500 (7.9 g)
137-Dec-2004DJD 72
Eyre Peninsula
31-Mar-2006100%-18°C
BGA3700 (35.46 g)420-Nov-2007TST236
Eyre Peninsula
19-Sep-200865%-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.