Seeds of South Australia
Frankenia sessilis (Frankeniaceae)
Small-leaf Sea-heath
List of species for Frankenia
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Seed collecting:
January to December
Herbarium regions:
Nullarbor, Eyre Peninsula, Murray, Yorke Peninsula
NRM regions:
Alinytjara Wilurara, Eyre Peninsula, Northern and Yorke, South Australian Murray-Darling Basin
IBRA regions
Southern Yorke (EYB01)Eyre Yorke Block
 Rare   (IUCN: RA d(ii))   (Probable Decline)
St Vincent (EYB02) 
 Rare   (IUCN: RA d(ii))   (Probable Decline)
Eyre Hills (EYB03) 
 Rare   (IUCN: RA d(i,ii))
Talia (EYB04) 
 Least Concern
Eyre Mallee (EYB05) 
 Least Concern
Myall Plains (GAW01)Gawler
 Rare   (IUCN: RA d(i,ii))
Gawler Lakes (GAW03) 
 Least Concern
Kingoonya (GAW05) 
 Rare   (IUCN: RA d(i,ii))
Nullarbor Plain (NUL02)Nullarbor
 Least Concern
Yalata (NUL03) 
 Least Concern
Hampton (HAM01)Hampton
 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 Frankenia]
Name derivation:
Frankenia named after Johan Frankenius (1590-1661), a Swedish botanist. Sessilis from Latin meaning sessile, stalkless or sitting on; referring to the sessile leaves.
Distribution:
Found on the Nullarbor, Eyre Peninsula and Yorke Peninsula in South Australia, growing in shrubland on saline soils. Also found in Western Australia and Victoria.
Status:
Native. Common in South Australia. Rare in Victoria. Common in  Western Australia.
Plant description:
Low, spreading shrub to 15 cm tall covered in minute, spreading hairs. Branches differentiated into long- and short-shoots. Leaves on long-shoot to 6 mm long and 1.7 mm wide, ovate to oblong, sessile or subsessile, minutely ciliate, grooved beneath, margins strongly and tightly revolute, almost concealing lower surface; surfaces greyish yellow-green, upper surface glabrous or with scattered minute hairs, lower surface with minute, spreading hairs. Short-shoot leaves similar but often shorter. Inflorescence borne at the top of the upper branches, solitary or in clusters with 2-7 white flowers. Flowering possibly throughout the year.
Fruit type:
Small brown cylindrical capsule.
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.