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 in 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 pointed end. Fruit splits 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 extends down one side 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.