Seeds of South Australia
Newcastelia spodiotricha (Chloanthaceae)
Dukes Grey-bush
List of species for Newcastelia
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Seed collecting:
December to February
Herbarium regions:
North Western, Lake Eyre
NRM regions:
Alinytjara Wilurara, South Australian Arid Lands
IBRA regions
Maralinga (GVD03)Great Victoria Desert
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Kintore (GVD04) 
 Near Threatened   [edge of range; grows on desert sanddunes]
Simpson Desert (SSD02)Simpson Strzelecki Dunefields
 Near Threatened
Mann-Musgrave Block (CER01)Central Ranges
 Data Deficient   [limited habitat; 2 old records]
Watarru (CER02) 
 Rare   (IUCN: RA d(ii))   [edge of range; grows on desert sanddunes]
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. Spodiotricha from the Greek 'spodios' meaning ash-colored, grey and 'thrix' meaning hair; referring to the species grey appearance due to hairs on the stems, leaves and buds.
Distribution:
Found scattered in the north and north-western parts of South Australia, growing on sand dunes. Also found in Western Australia, Northern Territory and Queensland.
Status:
Native. Uncommon in South Australia. Rare in Queensland. Common in the other states.
Plant description:
Erect grey shrub to 2 m high with branchlets covered in dense grey hairs. Leaves to 6.5 mm long and 3 mm wide, broad-ovate to elliptic-ovate with broadly revolute margins, covered in dense short greyish hairs, with major veins conspicuous underneath. Flower-spike terminal, cylindrical-shaped, covered in greyish hairs, with 5 to numerous blue flowers. Flowering between September and December.
Fruit type:
White-grey woolly obovoid to globose fruit.
Seed type:
Brown globular seed to 3 mm long and 2 mm wide.
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.