Seeds of South Australia
Eurychorda complanata (Restionaceae)
Flat Cord-rush
List of species for Eurychorda
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Seed collecting:
November to April
Herbarium regions:
Kangaroo Island, South Eastern
NRM regions:
Kangaroo Island, South East
IBRA regions
Mount Gambier (SVP02)Southern Volcanic Plain
 Critically Endangered   (IUCN: CR D)   [possibly extinct]
Kangaroo Island (KAN01)Kanmantoo
 Vulnerable   (IUCN: VU D2)   [hard to find; has had taxonomic changes]
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 Eurychorda]
Name derivation:
Eurychorda possible from the Greek 'eury' meaning broad and 'khorde' meaning chord or sting; referring to the string-like stems or the stems were used as string. Complanata means flattened; referring to the flattened stems.
Distribution:
Currently only known from the western side of Kangaroo Island in South Australia, with an old record from the lower South-east, growing on the edge of creeks in damp heath. Also found in Queensland, New South Wales, Victoria and Tasmania.
Status:
Native. Very rare in South Australia. Common in the other states.
Plant description:
Soft weeping perennial sedge with flattened, glabrous stems to 100 cm long. Leaves reduced to small scales at the base of the culms. The flat, wiry culms have small drooping branchlets of male and female flowers. Flowering between October to February.
Fruit type:
Brown spike at the terminal of stems. 
Seed type:
Tiny brown ellipsoid seed to 1.2 mm long and 0.8 mm wide, with a fine reticulated surface.
Embryo type:
Broad.
Seed collecting:
Collection mature heads, those turning brown. Either cut the whole heads or strip the fruit from the heads with your hands.
Seed cleaning:
Place the heads in a tray and leave to dry for one to two weeks. Then rub the heads with a rubber bung 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.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA600 (0.4268 g)54-May-2006DJD481
Kangaroo Island
8-Aug-200655%-18°C
BGA820 (0.34 g)615-Nov-2006TST95
Kangaroo Island
1-Aug-2007100%-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.