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 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 differ 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).