Plants of
South Australia
Glossocardia bidens
Compositae
Native Cobbler's-pegs
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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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Botanical art

Kath Alcock painting: 1.

Etymology

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.

Distribution and status

Found in northern 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.
Herbarium regions: North Western, Lake Eyre, Gairdner-Torrens, Flinders Ranges
NRM regions: Alinytjara Wilurara, South Australian Arid Lands
AVH map: SA distribution map (external link)

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. Fruits are brown to black head. Seeds are brown to black semi-flat oblong seed to 10 mm long and 1 mm wide, with two pointed awns at one end. Seed embryo type is spatulate fully developed.

Seed collection and propagation

Collect seeds between January and December. Collect heads that are matured, with obvious brown to black seeds. which are easily removed with your fingers. 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. From one collection, the seed viability was high, at 80%. Seeds are non-dormant, viable seed should germinate readily.

Seeds stored:
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LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA4,500 (7.7 g)50+28-Jan-2010KHB359
Flinders Ranges
1-Jun-201080%-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.