Seeds of South Australia
Acaena ovina (Rosaceae)
Downy Sheep's Burr
List of species for Acaena
Click on an image to enlarge it
Seed collecting:
November to February
Herbarium regions:
Northern Lofty, Murray, Southern Lofty, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, South Australian Murray-Darling Basin, South East
IBRA regions
Mount Gambier (SVP02)Southern Volcanic Plain
 Rare   (IUCN: RA d(i,ii))
Bridgewater (NCP01)Naracoorte Coastal Plain
 Rare   (IUCN: RA d(i,ii))
Glenelg Plain (NCP02) 
 Rare   (IUCN: RA d(ii))
Lucindale (NCP03) 
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)
Fleurieu (KAN02)Kanmantoo
 Near Threatened   [likes stringybark]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Least Concern   [likes stringybark]
Wimmera (MDD05)Murray Darling Depression
 Rare   (IUCN: RA d(i,ii))
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 Acaena]
Name derivation:
Acaena from the Greek 'acaina' meaning a thorn; referring to the genus prickly fruit. Ovina meaning of or like sheep.
Distribution:
Found across the Mount Lofty Ranges and the bottom of the South-east in South Australia. Also found in Queensland, New South Wales, Victoria and Tasmania.
Status:
Native. Common in South Australia. Common in the other states.
Plant description:
Prostrate herb to 50 cm high, lacking stolons. Leaves narrowly obovate to oblanceolate, with 5 or more pairs of leaflets, usually 8-12 cm long (including the petiole), glabrous or sparsely appressed sot hairs above, more dense below. Flowers in interrupted spikes, dark-purple.
Fruit type:
Woody ovoid fruit covered in hairs and spines.
Seed collecting:
Strip seeds off the flower spike that are turning brown using a pair of gloves as the fruits are spiny.
Seed cleaning:
Place the seeds in a tray and leave to dry for 1 to 2 weeks. 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 90%.
Seed germination:
Seeds are non-dormant, viable seed should germinate readily.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA2000 (18.97 g)115-Nov-2007RJB75642
Northern Lofty
19-Sep-200890%-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.