Plants of
South Australia
Drosera stricticaulis
Droseraceae
Erect Sundew
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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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Etymology

Drosera from the Greek 'droseros' meaning dewy, alluding to the glistening hairs of the glandular leaf laminae. Stricticaulis means upright stems, alluding to the erect flower-stalk.

Distribution and status

Found on southern Eyre Peninsula and on Dutchmans Stern in the Flinders Ranges in South Australia, growing on sandy clay- loam along watercourses and granite outcrops. Also found in Western Australia. Native. Rare in South Australia. Uncommon in Western Australia.
Herbarium region: Eyre Peninsula
NRM region: Eyre Peninsula
AVH map: SA distribution map (external link)

Plant description

Perennial, yellow-green herb, annual with a white, generally glabrous, minutely tuberculate stem tuber; erect stem, usually sparsely branched distally; minutely glandular-hairy. Stem leaves alternate in clusters of 3, circular, cup-shaped, peltate, to 6 mm diameter. Inflorescence a terminal cymose panicle, 3–14-flowered; sepals narrowly ovate-lanceolate to 8 mm long and 4 mm wide; stalked glandular-hairy; petals pink, broadly obovate to 12 mm long and 10 mm wide. Flowering between August and November. Fruits are brown globose capsule, erect and enclosed in persistent sepals. Seeds are black nail-shaped seed to 1.5 mm long, with a wrinkled surface.

Seed collection and propagation

Collect seeds between October and December. Collect mature capsules, those that are fat, hard, turning brown and contain black seeds inside. 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. From one collection, the seed viability was average, at 70%.

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
2,750 (0.13 g)
2,750 (0.13 g)
100+16-Oct-2012JRG27
Eyre Peninsula
27-Feb-201470%-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.
Germination table:
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