Seeds of South Australia
Hakea tephrosperma (Proteaceae)
Hooked Needlewood
List of species for Hakea
Click on an image to enlarge it
Seed collecting:
December to March
Herbarium regions:
Eastern, Murray
NRM regions:
South Australian Arid Lands, South Australian Murray-Darling Basin
IBRA regions
Olary Spur (FLB03)Flinders Lofty Block
 Endangered   (IUCN: EN D)   [outlier]
South Olary Plain (MDD01)Murray Darling Depression
 Rare   (IUCN: RA d(ii))   [check with Robyn Barker]
Murray Mallee (MDD02) 
 Endangered   (IUCN: EN D)   (Probable Decline)
Murray Scroll Belt (RIV06)Riverina
 Endangered   (IUCN: EN D)   (Probable Decline)
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 Hakea]
Name derivation:
Hakea named after Baron Christian Ludwig von Hake (1745-1818), a German horticulturalist and patron of botany. Tephrosperma from the Greek 'tephros' meaning ash-grey or grey and 'spermus' meaning a seed; referring to the colour of the seed of this species.
Distribution:
Found on the central western part of South Australia, growing in open spinifex and blue-bush shrubland. Also found in Queensland, New South Wales and Victoria.
Status:
Native. Rare in South Australia. Common in the other states.
Plant description:
Shrub or small tree to 8 m high with hairy young branches. Leaves terete, not grooved, to 80 mm long and 1.5 mm wide, wholly glabrescent, apex abruptly curved. Inflorescence clusters of 6–22 white flowers. Flowering between September and October.
Fruit type:
Greyish-brown woody ovoid fruit to 30 cm long to 20  mm wide, with a long pointy end. Fruit split into two to reveal two seeds.
Seed type:
Greyish-brown ovoid seed to 9 mm long and 5 mm wide (24 mm long and 10 mm wide including the wing that extend down one sides of seed).
Embryo type:
Investing.
Seed collecting:
Collect mature woody fruit that are hard, brown and not split. These will contain seeds.
Seed cleaning:
Place the woody fruit in a tray and leave to dry until it split open. Fruits can be placed in the oven at low temperatures to achieve the same result. Place the dried fruit in a bucket and shake to dislodge the seeds from the valves. Separate the seeds from the fruit and 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 without pre-treatment.