Seeds of South Australia
Frankenia cinerea (Frankeniaceae)
Grey Sea-heath
List of species for Frankenia
Display more images
Click on an image to enlarge it
Seed collecting:
October to February
Herbarium regions:
North Western, Nullarbor
NRM region:
Alinytjara Wilurara
IBRA regions
Northern Flinders (FLB05)Flinders Lofty Block
 Data Deficient
Commonwealth Hill (GAW08)Gawler
 Data Deficient
Maralinga (GVD03)Great Victoria Desert
 Rare   (IUCN: RA d(i,ii))
Kintore (GVD04) 
 Data Deficient
Yellabinna (GVD06) 
 Rare   (IUCN: RA d(i,ii))
Nullarbor Plain (NUL02)Nullarbor
 Rare   (IUCN: RA d(i,ii))
Dieri (SSD03)Simpson Strzelecki Dunefields
 Data Deficient
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 Frankenia]
Name derivation:
Frankenia named after Johan Frankenius (1590-1661), a Swedish botanist. Cinerea from the Latin 'cinereum' meaning ashy-grey; alluding to the grey appearance of the plant due hairs on the stems and leaves.
Distribution:
Found scattered on the western side of South Australia, growing on the edge of salt lakes, salt pans and breakaways. Also found in Western Australia and the Northern Territory.
Status:
Native. Uncommon in South Australia. Uncommon in the Northern Territory. Common in Western Australia.
Plant description:
Small perennial shrubs, sparsely to densely covered in hairs, with branches differentiated into long- and short-shoots. Long-shoot leaves to 3.6 mm long, decurrent, true node situated in the lower third of the leaf,leaf bases extremely reduced with the leaf blades extending below the point of insertion, leaf blades to 1.2 mm wide, ovate, oblong or rhombic, subterete, margins thickened, tightly revolute on fresh, dried and boiled material, mid-vein narrow, linear to somewhat broadened at the base, inconspicuous to abaxially raised, surfaces grey-green, short-shoot leaves similar to long-shoot leaves. Flowers borne at the top node of the upper branches, in terminal sometimes highly branched spike, or solitary, subtended by whorls of 4 leaf-like unequal floral bracts connate to incompletely fused at the base, with white to pink flowers. Flowering between July and December.
Fruit type:
Small brown cylindrical capsule with 1-3 seeds.
Embryo type:
Spatulate fully developed.
Seed collecting:
Look at the tip of branches for dried flower heads. Collect the heads that are cylindrical, brown, slightly fat at the base. This should contain small ovoid seed.
Seed cleaning:
Place the flower heads in a tray and leave to dry for at least a week. Then rub the dried heads gently to dislodge the seeds. Use a fine sieve to separate the seeds from the unwanted material. Be careful as the seeds are very small. Store the seeds with a desiccant such as dried silica beads or dry rice, in an air tight container in a cool and dry place.
Seed germination:
Seeds are non-dormant, viable seed should germinate readily.