Seeds of South Australia
Amaranthus macrocarpus var. pallidus (Amaranthaceae)
Pale-fruit Amaranth
List of species for Amaranthus
Click on an image to enlarge it
Seed collecting:
January to December
Herbarium region:
NRM region:
South Australian Arid Lands
AVH map:
Australian distribution map (external link)
SA Census:
Census of South Australian plants (external link)     [genus Amaranthus]
SA Flora:
Flora of South Australia Edition 5
Name derivation:
Amaranthus from the Greek 'a' meaning not and 'marantos' meaning withering, a name used for an everlasting flower. Macrocarpus from the Greek 'macros' meaning large and 'carpos' meaning fruit. Pallidus from Latin meaning pale, referring to the species' large, pale fruit.
Few records from the eastern region of South Australia, growing on flooded clay along drainage line and old river plain. Also found in Queensland and New South Wales.
Native. Rare in South Australia. Common in other states.
Plant description:
Erect or prostrate annual to 30 cm high. Leaves on petioles to 25 mm long, ovate, oblong or obovate. Inflorescence of dense, globose, axillary clusters to 8 mm long, with predominantly female flowers present.
Fruit type:
Clusters of globular spongy fruit, pale straw in colour. Differ from the other variety found in South Australia, Amaranthus macrocarpus var. macrocarpus, which has a dark brown or black fruit.
Seed type:
Semi-flat round black seeds to 1.5 mm across.
Embryo type:
Seed collecting:
Collect mature capsules, those that are turning a pale straw colour and contain black seeds. Whole stem containing many clusters of fruit can be collected.
Seed cleaning:
Place the capsules/stems in a tray and leave to dry for two weeks. Then rub the capsules/stems gently by hand to dislodge the seeds. Use a sieve to separate the unwanted material. Be very 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 one collection, the seed viability was average, at 60%.
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 (5.28 g)3013-May-2008RJB77874
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.