Seeds of South Australia
Glossocardia bidens (Compositae)
Native Cobbler's-pegs
List of species for Glossocardia
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Seed collecting:
January to December
Herbarium regions:
North Western, Lake Eyre, Gairdner-Torrens, Flinders Ranges
NRM regions:
Alinytjara Wilurara, South Australian Arid Lands
IBRA regions
Southern Flinders (FLB04)Flinders Lofty Block
 Near Threatened   [limited range]
Northern Flinders (FLB05) 
 Least Concern
Central Flinders (FLB06) 
 Near Threatened   [undercollected; likes rich soil over rocks; prob stable]
Arcoona Plateau (GAW04)Gawler
 Rare   (IUCN: RA d(ii))
Oodnadatta (STP02)Stony Plains
 Rare   (IUCN: RA d(i,ii))
Murnpeowie (STP03) 
 Near Threatened   [edge of range]
Peake-Dennison Inlier (STP04) 
 Rare   (IUCN: RA d(i,ii))
Mann-Musgrave Block (CER01)Central Ranges
 Near Threatened
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 Glossocardia]
Name derivation:
Glossocardia from the Greek 'glosso' meaning tongue and 'kardia' meaning heart; alluding to the shape of the style. Bidens from the Latin 'bis' meaning twice and 'dens' meaning tooth; referring to the to the bristles on the achenes.
Found in the northern part of South Australia, growing in a wide range of habitats. Also found in all mainland states.
Native. Common in South Australia. Rare in Victoria. Introduced in Western Australia. Common in the other states.
Plant description:
Perennial herbs with woody stems at the base to 30 cm long. Basal leaves persistent, glabrous, to 9 cm long, sometimes undivided and linear, usually pinnately divided, segments 2 or 3 pairs, spreading, linear,  upper leaves smaller, linear. Flower-heads solitary with yellow daisy. Flowers throughout the year.
Fruit type:
Brown to black head.
Seed type:
Brown to black semi-flat oblong seed to 10 mm long and 1 mm wide, with two pointy awns at one end.
Embryo type:
Spatulate fully developed.
Seed collecting:
Collect heads that are matured, with obvious brown to black seeds. which are easily removed with your fingers.
Seed cleaning:
Place the heads in a tray for one to two week to dry. If only seeds collected, no further cleaning is required. If heads are collected, then rub the heads gently with your hands to dislodge the seeds. Use a sieve to separate any 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.
Seed viability:
From one collection, the seed viability was high, at 80%.
Seed germination:
Seeds are non-dormant, viable seed should germinate readily.
Seeds stored:
LocationNo. of seeds
(weight grams)
of plants
Collection number
Collection location
% ViabilityStorage
BGA4500 (7.7 g)50+28-Jan-2010KHB359
Flinders Ranges
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.