Seeds of South Australia
Daviesia ulicifolia ssp. aridicola (Leguminosae)
Inland Gorse Bitter-pea
List of species for Daviesia
Click on an image to enlarge it
Seed collecting:
October to November
Herbarium regions:
North Western, Nullarbor, Gairdner-Torrens, Eastern, Eyre Peninsula, Murray
NRM regions:
Alinytjara Wilurara, Eyre Peninsula, South Australian Arid Lands, South Australian Murray-Darling Basin
IBRA regions
Olary Spur (FLB03)Flinders Lofty Block
 Rare   (IUCN: RA d(i))
Central Flinders (FLB06) 
 Endangered   (IUCN: EN B2ab(i,ii,iii,iv))   (Probable Decline)   [outlier; sand spp; localised; grazing a threat]
Eyre Hills (EYB03)Eyre Yorke Block
 Rare   (IUCN: RA d(ii))   [restricted habitat ]
Eyre Mallee (EYB05) 
 Least Concern
Murray Scroll Belt (RIV06)Riverina
 Vulnerable   (IUCN: VU D2)   [limited habitat; restricted to dunes, cliffs]
Gawler Volcanics (GAW02)Gawler
 Rare   (IUCN: RA d(ii))   [restricted habitat ]
Gawler Lakes (GAW03) 
 Rare   (IUCN: RA d(ii))   [restricted habitat ]
Kingoonya (GAW05) 
 Rare   (IUCN: RA d(i,ii))   [restricted habitat ]
Maralinga (GVD03)Great Victoria Desert
 Rare   (IUCN: RA d(ii))   [restricted habitat ]
Yellabinna (GVD06) 
 Least Concern
Yalata (NUL03)Nullarbor
 Rare   (IUCN: RA d(i,ii))   [restricted habitat ]
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. Ulicifolia means having foliage like the genus Ulex (gorse). Aridicola from the Latin 'aridus' meaning dry and 'cola' meaning a dwelling; referring to the habitat of the subspecies in the southern arid areas of New South Wales, South Australia and Western Australia.
Distribution:
Found in a central band across South Australia, growing on sandy soil in mallee. Also found in Western Australia and New South Wales.
Status:
Native. Uncommon in South Australia. Uncommon in the other states.
Plant description:
Shrubs with glaucous vegetative parts. Branchlets heavily ribbed and very rigid. Leaves narrow-ovate, to 17.5 mm long and 2.5 mm wide, upper face convex with mid-rib more prominent than below. Inflorescences 1 or 2 per axil with red-brown or brown (probably a dull red) pea-flowers. This subspecies differs from the other two subspecies found in South Australia by being glaucous, and in having very thick phyllodes and noticeably more ridged stems and a more reddish brown flowers. Flowering between May and October. 
Fruit type:
Brown asymmetrically triangular pod, beaked with the persistent style.
Embryo type:
Bent.
Seed collecting:
Collect maturing brown seed pods from the plant by either using a secateurs to cut off fruiting stems or strip the pods by hand.
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).