Seeds of South Australia
Tetratheca pilosa (Tremandraceae)
Pink-eyed Susan
List of species for Tetratheca
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Seed collecting:
October to January
Herbarium regions:
Murray, Southern Lofty, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, South Australian Murray-Darling Basin, South East
IBRA regions
Tintinara (NCP04)Naracoorte Coastal Plain
 Rare   (IUCN: RA d(i,ii))   [in reserves around Messent CP]
Fleurieu (KAN02)Kanmantoo
 Least Concern
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 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 Tetratheca]
Name derivation:
Tetratheca from the Greek 'tetra' meaning four; and 'theke' meaning case; referring to the 4 anther-loculi, the anthers are often four-lobed or four-celled. Pilosa from the Greek 'pilosus'  meaning covered in long, soft hairs.
Distribution:
Found mainly in the southern Mount Lofty Ranges and in the upper South-east in South Australia, growing in heathland and sclerophyll forest. Also found in New South Wales, Victoria and Tasmania.
Status:
Native. Common in South Australia. Common in the other states.
Plant description:
Erect or spreading shrub to 60 cm high, arising from a root stock with stems covered in tubercles and on younger growth short hairs. Leaves usually alternate but occasionally opposite, linear to narrowly ovate, to 15 mm long and 1 mm wide, margins revolute often over the midrib, or recurved, apex blunt or with a short pungent point. Inflorescences single or rarely 2 together in the upper axils with dark- or pale-pink or white bell-shaped flowers, sepals 4, petals 4, stamens 8, body of the anther glabrous or with small hairs, tapering into tube with a narrow or broad orifice, ovary usually with scattered glandular hairs. Flowering between September to November.
Fruit type:
Brown ovoid capsule to 5 mm long and about two-thirds as wide, often beaked.
Seed type:
Dark brown cylindrical seed to 3 mm long and 1.5 mm wide, covered in scattered hairs and with a cream appendage.
Seed collecting:
Collect maturing capsules those that are fat, turning a pale brown and contain hard dark seeds.
Seed cleaning:
Place the capsules in a tray and leave to dry for a week. Then rub the dried capsules gently by hand to dislodge the seeds. Use a sieve to separate the unwanted material. 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.