Seeds of South Australia
Newcastelia bracteosa (Chloanthaceae)
Purple Grey-bush
List of species for Newcastelia
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Seed collecting:
October to January
Herbarium region:
North Western
NRM region:
Alinytjara Wilurara
IBRA regions
Maralinga (GVD03)Great Victoria Desert
 Least Concern   [WA species]
Kintore (GVD04) 
 Least Concern
Mann-Musgrave Block (CER01)Central Ranges
 Rare   (IUCN: RA d(ii))
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 Newcastelia]
Name derivation:
Newcastelia named in honour of Henry Pelham Clinton, 5th Duke of Newcastle (1811-1868), who was Secretary of State for the Colonies between 1852 and 1854, and supplied funds for the north-western Australian Government Expedition of 1855. Bracteosa from Latin meaning having many or large bracts.
Distribution:
Found in the far north-western corner in South Australia, growing in red sandy soils, on sandplains or associated with (on or between) dunes or san ridges, in spinifex grasslands, sometimes dominated by shrublands of Acacia or Eucalyptus species. Also found in Western Australia and Northern Territory.
Status:
Native. Common in South Australia. Common in the other states.
Plant description:
Spreading shrub to 90 cm high with erect stems and branches covered in dense hairs. Leaves sessile, decussate, oblong-lanceolate, with recurved margins, to 25 mm long and 7 mm wide, with very dense hairs. Flower-spike terminal, slender, long and cylindrical with purple-violet flowers. Flowering between August and November.
Fruit type:
White-grey woolly obovoid to globose fruit.
Seed collecting:
Collect mature fruit-heads, those turning a straw colour. Rub the fruit with your hands to see if there is any mature seeds before collecting. Collect by breaking off the whole fruit spike.
Seed cleaning:
Place the fruit-spikes in a tray and leave to dry for two weeks. Then rub the capsules gently by hand or with a rubber bung 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.