Seeds of South Australia
Peganum harmala (Zygophyllaceae)
Wild Rue (Harmal)
List of species for Peganum
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Seed collecting:
January to April
Herbarium regions:
Gairdner-Torrens, Flinders Ranges, Eastern, Eyre Peninsula, Northern Lofty, Murray, Southern Lofty, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Eyre Peninsula, Northern and Yorke, South Australian Arid Lands, South Australian Murray-Darling Basin, South East
AVH map:
Australian distribution map (external link)
SA Census:
Census of South Australian plants (external link)     [genus Peganum]
Name derivation:
Peganum a name used by Theophrastus and is from the Greek 'peganon' meaning rue; from a supposed resemblance of the species to the common rue, Ruta graveolensHarmala from the Arabic verancular name harmil, alluding to it's medicinal use for thousands of years.
Distribution:
An introduced species native to the steppes and deserts of the Mediterranean region from Spain, northern Africa and Arabia through southern Russia to Tibet and recorded in the east central region in South Australia. Also found in New South Wales and Victoria.
Status:
Introduced. Common in South Australia. Uncommon or Rare in the other states.
Plant description:
Perennial fleshy shrub to 80 cm tall with a long tap root. Leaves to 5 cm long, alternate, 3-sect or divided several times into narrow spreading segments. Inflorescence solitary or on axillary peduncles with large white flowers. Flowering between November and February.
Fruit type:
Round brown capsules 12 mm diameter, surrounded by narrow sepals.
Seed type:
Dark brown wedge-shaped seed to 3 mm long and 2 mm wide, with a fine reticulated surface.
Embryo type:
Spatulate fully developed.
Seed collecting:
Collect semi-dried and dried capsules, turning brown, which have a hard and dark seed inside.
Seed cleaning:
Place the capsules in a tray and leave to dry for 1 to 2 weeks. Then rub the dried capsules with your hand or a rubber bung to dislodge the seeds. Use a sieve to remove the 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 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
BGA7000 (17.69 g)50+1-Apr-2010DJD1821
Eastern
Jun-201090%-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.