Seeds of South Australia
Daviesia asperula ssp. obliqua (Leguminosae)
Eyre Peninsula Bitter-pea
List of species for Daviesia
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Seed collecting:
October to December
Herbarium region:
Eyre Peninsula
NRM region:
Eyre Peninsula
IBRA region
Eyre Hills (EYB03)Eyre Yorke Block
 Least Concern
Talia (EYB04) 
 Least Concern
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 the Rev. Hugh Davies (1739-1821), a Welsh botanist and an Anglican clergyman. Asperula from the Latin 'asper' meaning rough, referring to the slight roughness of the branchlets and phyllodes. Obliqua from the Latin 'obliquus' meaning oblique, referring to the oblique or unequal-sided phyllodes.
Endemic to South Australia and found only on the southern Eyre Peninsula.
Native. Common in South Australia.
Plant description:
Compact or spreading shrub to 2 m tall, the branchlets greenish, with several longitudinal, minutely scabrid ribs. Phyllodes falcate or obliquely narrow-obovate; flattened, recurved along the entire length of the upper or both margins; broadest at or above the middle, contracted towards the base, to 4.5 mm wide. Flower-spike a raceme with 2-3 orange or yellow with a deep-red-centred pea-flowers. This subspecies differs from Daviesia asperula ssp. asperula which has a more slender leaves that are broadest at or near base. Flowering between August and September.
Fruit type:
Brown broad-triangular pod, with one seed inside.
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 germination:
This species has physical dormancy that needs to be overcome for the seed to germinate (e.g. nicking or softening the seed coat).