Plants of
South Australia
Hakea carinata
Proteaceae
Erect Hakea
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Regional Species Conservation Assessments per IBRA subregion.
Least concern
Near threatened
Rare
Vulnerable
Endangered
Critically endangered
Extinct
Data deficient
Adelaide
Arkaroola
Ceduna
Coober Pedy
Hawker
Innamincka
Marla
Marree
Mount Gambier
Oodnadatta
Renmark
Wudinna
Keith
Yunta
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Botanical art

Kath Alcock paintings: 4.

Etymology

Hakea named after Baron Christian Ludwig von Hake (1745-1818), a German horticulturalist and patron of botany. Carinata presumably from the Latin ' carina' meaning keel, however, it is not clear what is keeled in the original description of the species, but may refer to the trigonous leaves of this species, or the base of the fruit.

Distribution and status

Endemic to South Australia and found in the southern Flinders Ranges, Mount Lofty Ranges and the upper South-east growing in the dry sclerophyll forest and in scrub-heath, in sandy to loamy soil. Native. Common in South Australia.
Herbarium regions: Flinders Ranges, Northern Lofty, Murray, Southern Lofty, South Eastern
NRM regions: Adelaide and Mount Lofty Ranges, South Australian Arid Lands, South Australian Murray-Darling Basin, South East
AVH map: SA distribution map (external link)

Plant description

Erect untidy shrub to 3 m tall. Leaves broadly to narrowly linear, flat, concave or trigonous to 240 mm long and 12 mm wide; glabrous, marginal veins prominent; midvein only, or sometimes 3 longitudinal veins prominent below. Inflorescence a solitary axillary umbel with 8–24 cream-white flowers becoming pink with age. Flowering between September and October. Fruits are greyish-brown woody ovoid fruit to 26 mm long and 11 mm wide, with a long pointed tip. After fire or when warm enough, the fruit splits into two to reveal two seeds. Seeds are dark-brown to black ovoid seed to 5 mm long and 3 mm wide (12 mm long and 5 mm wide including the wing that extends narrowly down both sides of seed). Seed embryo type is investing.

Seed collection and propagation

Collect seeds between January and December. Collect mature woody fruit that are greyish-brown and not split. These will contain 2 seeds. Place the woody fruit in a tray and leave to dry until it splits 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. From one collection, the seed viability was high, at 90%. Seeds are non-dormant, viable seed should germinate readily without pre-treatment.

Seeds stored:
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LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
8,600 (95.16 g)
8,600 (95.16 g)
30+10-Dec-2005KHB14
Southern Lofty
8-Aug-200690%-18°C
Location: BGA — the seeds are stored at the Adelaide Botanic Gardens, MSB — the seeds are stored at the Millennium Seed Bank, Kew, England.
Number of plants: This is the number of plants from which the seeds were collected.
Collection location: The Herbarium of South Australia's region name.
% Viability: Percentage of filled healthy seeds determined by a cut test or x-ray.