Seeds of South Australia
Wahlenbergia gracilis (Campanulaceae)
Australian Bluebell
List of species for Wahlenbergia
Click on an image to enlarge it
Seed collecting:
October to February
Herbarium region:
Southern Lofty
NRM regions:
Adelaide and Mount Lofty Ranges, South East
IBRA regions
Glenelg Plain (NCP02)Naracoorte Coastal Plain
 Rare   (IUCN: RA d(ii))   [a few more records]
Lucindale (NCP03) 
 Vulnerable   (IUCN: VU D2)   [limited habitat]
Fleurieu (KAN02)Kanmantoo
 Rare   (IUCN: RA d(ii))   (Probable Decline)   [likes good soils; blackberries a threat]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Rare   (IUCN: RA d(ii))   [likes good soils ]
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 Wahlenbergia]
Name derivation:
Wahlenbergia named by H.A Schrader in honour of Georg Göran Wahlenberg (1780-1851), a Swedish professor of botany. Gracilis from Latin meaning slender; alluding to the species habit.
Found in the southern Mount Lofty Ranges and the lower South-east in South Australia, growing in shady grassy areas. Also found in Queensland, New South Wales, Victoria and Tasmania.
Native. Uncommon in South Australia. Common in the other states.
Plant description:
Tufted perennial, few to many stems from a thickened taproot, smooth or with short hairs near base, stems erect, ascending or sprawling, to 80 cm long. Leaves alternate or opposite for a few pairs near base, obovate (usually near base) to linear (above), to 70 mm long and 10 mm wide, margins of broader leaves commonly with small callus-teeth, others usually entire. Flowers blue, sometimes pink or white, funnel-shaped with 5 narrowly triangular lobes. Flowering between September and January.
Fruit type:
Brown conical capsule to 7 mm long.
Seed type:
Tiny brown elliptic seed to 0.6 mm long and 0.2 mm wide, with fine striated surface.
Embryo type:
Spatulate under-developed.
Seed collecting:
Collect capsules that are maturing, drying and turning brown with brown seeds inside.
Seed cleaning:
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.
Seed viability:
From three collections, the seed viability were high, ranging from 90% to 100%.
Seeds stored:
LocationNo. of seeds
(weight grams)
of plants
Collection number
Collection location
% ViabilityStorage
BGA3200 (0.3557 g)401-Dec-2006RJB70484B
Southern Lofty
BGA31000 (0.36 g)5010-Nov-2007RJB75508
Southern Lofty
BGA74000 (1.88 g)20+18-Dec-2009KHB351
Southern Lofty
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.