Seeds of South Australia
Drosera hookeri (Droseraceae)
Hooker's Sundew
List of species for Drosera
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Seed collecting:
October to December
Herbarium regions:
Flinders Ranges, Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, Kangaroo Island, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Eyre Peninsula, Kangaroo Island, Northern and Yorke, South Australian Murray-Darling Basin, South East
AVH map:
Australian distribution map (external link)
SA Census:
Census of South Australian plants (external link)     [genus Drosera]
SA Flora:
Flora of South Australia Edition 5
Name derivation:
Drosera from the Greek 'droseros' meaning dewy; alluding to the glistening of the glandular leaf laminae. Hookeri commemorates Joseph Dalton Hooker (1817–1911) who originally recognised this taxon and provided a manuscript name which was used by J.É. Planchon.
Distribution:
Found scattered across the southern part of South Australia from the southern Flinders Ranges, bottom of Eyre Peninsula to the lower South-east growing in seasonally-moist infertile mineral-based soils in herbfields and low open shrublands. Also found in New South Wales, Victoria and Tasmania.
Status:
Native. Uncommon in South Australia. Common in the other states.
Plant description:
Small yellowish green herb forming dense colony with a white stem tuber enclosed by multi-layered black sheath. Stem erect, annual, much branched basally, appearing multi-stemmed and shrubby, to 12 cm long, glabrous, lowest leaves 5–10 in a flat rosette, spathulate-flabellate, to 11 mm long and 10 mm wide, stem leaves alternate, close spaced, sometimes in clusters of 2–4, broadly crescentic-lunate, to 6 mm long and 5 mm wide. Inflorescence a 1-sided raceme, with 5–10 white flowers. Flowering between August and November.
Fruit type:
Brown globose capsule to 6 mm diameter, erect, enclosed in persistent sepals.
Seed collecting:
Collect mature capsules, those that are fat, hard, turning brown and contain black seeds inside.
Seed cleaning:
Place the capsules in a tray and leave to dry for one to two weeks. Then rub the capsules gently by hand 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.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
2800 (0.87 g)
2800 (0.87 g)
60-703-Dec-2005DJD324
Southern Lofty
1-Aug-2006100%-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.