Seeds of South Australia
Styphelia exarrhena (Epacridaceae)
Desert Styphelia
List of species for Styphelia
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Seed collecting:
July to October
Herbarium regions:
Murray, Southern Lofty, Kangaroo Island, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Kangaroo Island, South Australian Murray-Darling Basin, South East
IBRA regions
Bridgewater (NCP01)Naracoorte Coastal Plain
 Rare   (IUCN: RA d(i,ii))
Lucindale (NCP03) 
 Least Concern
Tintinara (NCP04) 
 Least Concern
Kangaroo Island (KAN01)Kanmantoo
 Least Concern   [likes sandy soils]
Fleurieu (KAN02) 
 Rare   (IUCN: RA d(ii))   (Probable Decline)   [stronghold in Newland Head, Scott CP & Cox Scrub; declining outside reserves]
Talia (EYB04)Eyre Yorke Block
 Data Deficient   [questionable location]
Murray Mallee (MDD02)Murray Darling Depression
 Rare   (IUCN: RA d(i,ii))
Murray Lakes and Coorong (MDD03) 
 Rare   (IUCN: RA d(ii))   (Probable Decline)
Lowan Mallee (MDD04) 
 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 Styphelia]
Name derivation:
Styphelia from the Greek 'styphelos' meaning hard or rough; alluding to the stiff prickly-pointed leaves. Exarrhena unsure of meaning.
Distribution:
Found on Kangaroo Island, southern Mount Lofty Ranges and the upper South-east in South Australia, growing in mallee scrub, coastal shrublands and heathlands on sandy soils over limestone. Also found in Victoria.
Status:
Native. Common in South Australia. Rare in Victoria.
Plant description:
Erect shrub to 60 cm high with grey stems. Leaves erect or spreading, ovate, to 9.5 mm long and 4.9 mm wide, flat to convex, thick, apex often down-turned, surfaces glabrous or sparsely velvety above, margin flat to slightly recurved. Inflorescence erect, solitary or 2 close together in a much reduced spike with white densely bearded flowers. Flowering between April and August.
Fruit type:
Ellipsoid fruit to 2.5 mm long, with a thin fleshy layer and woody endocarp with a number of sections, each with one seed.
Seed type:
Soft, white longitudinal seed, within the woody endocarp.
Embryo type:
Linear underdeveloped.
Seed collecting:
Collect individual fruit by hand when ripe, fleshy layer soft and a pale colour. Check to see if locules are filled with seed by cutting the woody endocarp in half.
Seed cleaning:
The thin fleshy layer does not need to be cleaned off for storage, just leave it to dry for one to two weeks before storing with a desiccant such as dried silica beads or dry rice, in an air tight container in a cool and dry place. If you do want to clean the flesh off, then place the berries in a bucket of water and leave to soak over night. Rub the flesh off by hand. Drain and wash again if required to remove all the fleshy parts. Then spread the wet seeds onto paper towels and leave to dry. 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 have morphophysiological dormancy and will not germinate readily without treatment. Germination is enhanced by treating with fire cues, heat and smoke water, and gibberellic acid.