Plants of
South Australia
Wahlenbergia queenslandica
Campanulaceae
Northern Bluebell
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Adelaide
Arkaroola
Ceduna
Coober Pedy
Hawker
Innamincka
Marla
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Oodnadatta
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Wudinna
Keith
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Botanical art

Kath Alcock painting: 1.

Etymology

Wahlenbergia named by H.A Schrader in honour of Georg Göran Wahlenberg (1780-1851), a Swedish professor of botany. Queenslandica means of or from Queensland, Australia; referring to the location of the type specimen collected in 1958 from Grovesnor near Clermont in Queensland.

Distribution and status

Found in the northern part of South Australia, growing in open sites in a variety of vegetation types. Also found in Western Australia, Northern Territory, Queensland and New South Wales. Native. Common in South Australia. Common in the other states.
Herbarium regions: North Western, Lake Eyre, Eyre Peninsula
NRM regions: Alinytjara Wilurara, Eyre Peninsula, South Australian Arid Lands
AVH map: SA distribution map (external link)

Plant description

Perennial tufted herbs with a fleshy rootstock with stems to 90 cm high, upper parts glabrous, lower parts hairy. Leaves alternate or sometimes the lowermost opposite, to 60 mm long and 9 mm wide, obovate or oblanceolate, becoming linear up the stem, margins flat or sometimes undulate. Flowers terminal, blue, funnel-shaped with 5 narrow-triangular lobes, base often rather swollen in appearance. Flowers throughout the year. Fruits are brown capsule to 5 mm long. Seeds are tiny orange elliptic seed to 0.7 mm long and 0.3 mm wide. Seed embryo type is spatulate under-developed.

Seed collection and propagation

Collect seeds between January and December. Collect capsules that are maturing, drying and turning orange with hard seeds inside. Place the capsules in a tray and leave to dry for a week. Then rub the capsules gently with your hands to dislodge the seeds. Use a sieve to separate the unwanted material. Be careful as the seeds are very small. 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 two collections, the seed viability were high, ranging from 80% to 85%.

Seeds stored:
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LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA10,000 (0.21 g)504-Apr-2007RJB71237
Eastern
19-Sep-200885%-18°C
BGA 
MSB
78,000 (0.97 g)
78,000 (0.97 g)
100+26-Sep-2008TST420
Lake Eyre
20-Jul-200980%-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.